1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579de8253ddcb8830ece54e1f6f19e60061b21feea6d85535a073c1b350999d8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88023b70-93f6-4a14-b6bc-5f6dd3e20fc5.json and https://artists.proofprofile.net/proofs/artist/88023b70-93f6-4a14-b6bc-5f6dd3e20fc5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5e028af2d8fc3a9a16efa2fe6001e995fcef4cb161b89d7e7d8987c18cd51d. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAR071500647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba6408393e010a4ec2bb8ffafd94b0400a8c10b8b8ff2f918f4817526d151bd. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDM31604501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b047dbc8716de366f6afa1a5995f381036e4dc387d7fc1508b90a39f0b72d29. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLZ541601024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799b2a7df85dda1556fad67c0390454dd08cbc5ca17010cd5f8328361f9d6ccb. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLZ541601207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015f8c2de3ea37b546709049cf5f531fc4340d598c7fbd010d894b33a2a25745. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S1703171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bffc92b98719a3ca92edc84648fe8873490f1f7c0f6bf6751f583d3d232952. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S1800540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e7da32c21488aa0044126cc473781c1e049c0cf4e2b6f3cfc9a502b8009bb3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1800989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b8b6e8f70bb22bd5eaa492b21416d8a2ca31d1d230daf24ba22fe8d3a2abf4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1805341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c4b9dc0472ac267fbf61e4f91e0f956202f2045bde4aed8f2206a4eef64691. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:01:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDM31801901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d98e208ac745e38e33e0b18f88a29d212f2a1d6daa70f7fb9731c67adfaf5f7. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DK4YA1822301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257b404cce004e27e6a3488b2ea423571f1771e98165c38312852a7644fc39f0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1939525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48f4e7cce965ec41aa9449304f570fa6eae6177f6e3ce8a420ce1c7e463512b. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2091524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20eb4450b60fbf5620617d30313dcb751efc4a8520e0d73074f5b69f0cc16680. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2099740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3dc24ee67e17dffe7edd27375680fa431f380bc27ac5b8ac0d6d5df7b13f31d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEW2028129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38632297cd118dc221569249e5b6249193a638fe5b3567cad27cd9679a2c8266. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2008609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827180df37dee54e504f71042e0860807b6edad85710beee49006426132fe229. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2019537.
Buckwild (The FifthGuys, Coffeeshop Remix)
Buckwild (The FifthGuys & Coffeeshop Remix)
Buckwild - The FifthGuys & Coffeeshop Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f1d418c647f170d0046d6426d42ecb1c5bc66a74c29d3b9f2a12bf7526365d. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFE2000276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699183834b10ba85426c887ec1c3aadf1f57e395198b42bfda3e1257b0ed0aeb. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2138832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d458286a9c89db603cc7d6e0cba2a769206ec691a14b3aaabae17ff628a300. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB2LD2110055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fba035d3165e413aaffadb6c970b21bb2fd4ef3ec96bd060ea4bdbcd1daa595. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2155195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8629de55333d2bab346291acae142177d6203fa01f110120c5033fb5f33aa97f. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2155290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62af98a6d8b9dc11bc54572c990d5d199e623c6df5baa34a4a558bcd4d373495. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:47:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2156262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7487220898552e69d7bf7e307d92265dd2f030f301426217a0099d91a948cb6f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2156263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389e38d7416c17b1574595ff84cb92abc791ca5e486f49acefa52a421828d0bd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5WB2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f66919421f3c50c4239283208b8a710454de597f166e2f66ded8c3f3b5e271. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5WB2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f66919421f3c50c4239283208b8a710454de597f166e2f66ded8c3f3b5e271. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL5WB2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea757f6d0a199cd2e3264a328b81d0b85247e62a0065d0bbac3c13a301ace3b. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2299047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeba67ce495050510147480dfd6d4ad14429d2f172e959c87e6d9b512136d2b2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2373105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46848fc6bff890424a5cc5dc523558b641a651b9f53aee39fa1a0e20fa1551d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2381854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb01f5f880940af6f7a556acfbc0ba6474414688e5d896c5d76f059364ee4e59. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2390648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681c87ea8d2fd25be0b96bb6bfafc1becd2e9054bc871f5e88912a4ebc515178. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2410108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeba67ce495050510147480dfd6d4ad14429d2f172e959c87e6d9b512136d2b2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2373105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681c87ea8d2fd25be0b96bb6bfafc1becd2e9054bc871f5e88912a4ebc515178. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2410108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee476f4fa01c84b6358f164e7af3c608a87cd720d20498677db93dc1e1d6e7d. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:33:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2411515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcceff54f6ab3a0d2e66d7a0a2bb4ae80bff9d7e46892f335ae52e4ddabfe0eb0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2398461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf93286de5b35d1d299dc3996d57d5974a18367258f7f4545f1f4d2d42a5fcd1. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2411517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34921957a08774f1eb4af08b2f8ddd025e588f496ad13b7b527284a699c679dc. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2411518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890872c3a46854ba705974e58cd8b1e30f7632f6b3be17553a0ea80e3edadce5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2411519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481a4391b719bb59271562952df3f94014c181f425116a185a1359b2e2310126. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2411523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a31a70d49794267309fe600dc95cc567d16b8f360f6f84a69fa438e750c65b6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTGW2406025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5772387aa9e712c9624ef795ddae63a5e78d0b288e34ca8e38d4679a4fc5309. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTGW2404185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5c30bb845e5451ceabe1f70d9fc690604779e5e127df3d55199980c36101c9. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTGW2406026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805dad538e2845672a71133f5a5b3bc3f400c3c479e9baf3f4cbeb2c4cbaf3ce. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTGW2404695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe555f7907fa6a5dc5564c76647b71211db1c31061bc8df9237d8ab692b44d2ef. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:32:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTGW2404954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d8866f222d35f99c620c869230343bacbcae362404c2d5f9bf7c341384b439. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:36:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTGW2406027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a1e2a3db9e49e12ceb5a0783a996d931a80a829ba73279b08593f500337026. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTGW2406028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93723bf4f49434acdb3bb8f2f2b232bc452c3cd1840b7d67eef19df03120c2d1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTGW2406029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5dab5ebca39b961b88025164a38bc2c7c892bec840e9c814d004afecdba5dd0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTGW2405792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6930c89ecb4f12b62f810482c9ae294b2b4c2452c911880aced2c1a171eedff0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTGW2406031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5fe89e82813d6d1bca2902b2611bddf62a50925284761b6e5e890265db652a. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD52023079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe2a5983db504942d5971ace5ed6a487fff37e81f8ecdc16a422399cdd27dca. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKSR71400805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb50010f018de85d3abf34e8e31983a120c557b2164e5795a59ad375b67d9cae. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S1919390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180d203f193a82d7f70c227df3bcc9f34b8a4d7819c9fb9ad7fefea17a180ae7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM71900986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5fe89e82813d6d1bca2902b2611bddf62a50925284761b6e5e890265db652a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD52023079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a14895c747d4896d0827b4438e91c12d78283ff56fc6f0bacf42250db7a378. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2280367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88b4ec12aa3e4c4f0f70094861513a9045d729927c6b2396abe8cde0a83cce5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2107100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3cb4a41c6167586216a151b0922782e5a113812682afd9f4a2a7459ae8dbf5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2204737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13eeab00b23bbe18e7929b6b2bd41b6f806ea5252470a5be80c802157ae287ae. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD52023064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13eeab00b23bbe18e7929b6b2bd41b6f806ea5252470a5be80c802157ae287ae. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD52023064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d715344f35f5bc758c7256bfcf04aad6d69363c25db007999c357c44f6757e3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF711703242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c7a3a2a08c768333e01cb4e30546da05f5a723e79d35bc9656af191b7779d2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2115012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913fce7e862a50b95baa06afe4e6a0b30061d06a75f1be23be8d1c1d38167215. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKSR71300203.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch