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 0xf687950c43979393c4464eec0f9c18b47403b67a3f53290aac533b46e54f7778. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1f3668d-cae3-44d7-9b14-9320e9e1635d.json and https://artists.proofprofile.net/proofs/artist/c1f3668d-cae3-44d7-9b14-9320e9e1635d.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 0x923423618a804d3a166f9b1b216eaa017ac78d5087d721c025b2cb6f1c029028. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZTB32317985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3deaa1bd0718cff62a54b421d4155f31730cc13fc0180719ce389f71a3fd812f. 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/QZNWV2220504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e851f706fc25e929a4ae74f94d63bf3407ffa37d4b4f651904f1b758b2cfaa8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:02:43Z), 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/QZPLS2214798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1513f19cd29f26d999f63ae8df1bc99efcfdd637aac38deb90626ae7d76944d6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZVPL2200218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc27d2cf5ac9da371f00a72c0b80c5d960dc4298549a1baddc33824af8d7903. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZVPL2200222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed58e5dc4fb71eb9bed6b14d81829df4cc6f562468ea85035f59f36568d45de. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTB32317907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e0d9acdae3b5081e0422f32be9a6c33192da64989884c495fc0fa8e1387e3e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTB72303502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f621c72726dea8f3692fc50a084689f22e4fb05790d340326d3469d14cdc946. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:32:14Z), 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/QZVPL2301035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcaf7fb6023bcfca14dd9339451cc76b33276cc47754c3f4cfedd73551b41b1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMEQ2399323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f9d25f7c8ff04405665a3b8a3cc070e14639a5aed4fffbcad8b00adb63c43b. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZDA62395074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b6225f1cad9547bce6108e6733d92604b70ac4fd6f7a29348a92a55b45e0e3. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZVPL2301191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05818bdd64964b6abddb3bc11e744eb5e00085fc4259fdf686440af3b5b1b12f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZVPL2301355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a688624664d1bc0b58958ea056a1e03025a0a733c51d7dfa27811e18dc8e311. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZTB62312714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523f3dbaa86833b90dfeb9863bbd94069022eaa35ec836854a06afa567ab6e70. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZTB62397106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6a0103a106cfee978c19701445ce60e7eac9d33e2aa358f47c4fd84655b9c3. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZWFK2360803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f43060efb6fc44166f95dc3de47b078e214d8395f401d7582ff602aca830fe. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHNC2473574.
Jungla D' Cemento (INSTRUMENTAL PROD.BY LINKON)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11ccc25ccdeeae19c9b6ea7399660393ecff75b7a2fd250c259580db859ff14. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZK6M2472284.
My Cumpleaños Pt3 (Instrumental Prod By LiNKON)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bb536adc89d13863454ff36737491ac91842da7f9aeb44640de992fcd683ad. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZA742422874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecca70e3d40f667e79e23bde03f3523adceb3cb3499a7272af1dc39c88b58c9e. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/CA5KR2475333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465c31c19fe594299cd69ed25dc03982e207d87027ea07989149dff99f7e8864. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/CA5KR2475334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927a5fa1348e30d61b5f83df8dc726e1ea5421a89055b3c721c381b1de5f932e. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:03:12Z), 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/CA5KR2475335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff27f24554355f2733077202cce3ee7053b5a071f12bdf75a800b448b30c023. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:00:36Z), 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/CA5KR2475336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82153a16bc401c92b6cd86a8af63d771e54f121a6c055b81a2ee94696b071ae. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:42:34Z), 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/QZA742422843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533aab50f03993c36f6b7f7e01a9e40fe86a0d5bba73de617bc9a7d37addb53b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZVPL2404111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa20ea535ded9b3b069ed183a065743058452cab05a24d80c271e1731b046d62. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:11:48Z), 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/NL3M12409038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8e3d15e010ca2a5cceb524a4a7d2ea057549383c2e63414232a344aa4b76f1. 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/QZFZ42453356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6994ea86478d9adc0eb8fbb65b94d0e11847810fd9925488afea92bfabc09b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPLS2271191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad50ef0fa2b989aa33da912be7ce44a99168f7660ed1515c1f37a4bb556b0ae. 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/QZWDD2272367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ea31f410a29b940c4f752dcaca175a18775b530a5b1a3bde7dc335aa3c34a3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZES92296272.