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 0x7d0e90fab3d313cd93bf27e918734873014775740af1e3e3d2b70cda69a1a7ca. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b91b895d-ec75-422a-bb61-1efa13285da2.json and https://artists.proofprofile.net/proofs/artist/b91b895d-ec75-422a-bb61-1efa13285da2.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 0x5e9d822dbb48143e95eeb1c94c7bc9800d5691034ccdb8af6f09b7b7cfc5f969. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:57:44Z), 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/JPC820800244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059a764081d7d7768f32b5f04acbe783a5f4446d7c8dd5dab3e3a702fe346ae8. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/JPC820800245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1db8b1a0e6445f71905bb5449466dbbf7075f448b5e821d7544aa3b050e6db. 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/JPC820800246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9267bed55d531d0fe824bc21e7ca6aa1de7d4f4fc594c9886b2c8299e388e74b. 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/JPC820800250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aa854be8d7397a15d935b124f2ca2c333c870a91c97ac1680f6919bc6d59bd. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/JPC820800252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c35e221c02ce913905e821f6d60cfebcffb7975f7885a50d0f3ca75f4716c2. 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/JPC820800254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd50a9e4bc647eaf58720e733744961f5e252047142185546846554e931728a. 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/JPC820800255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee815d974798607863b905e59492ce1b764f2ac9b50545efe64d2f255702a83. 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/JPKI00603931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35642529f6144c2a639ff11204cfe73c67f3b2df2d9819722c90285e0b7f2ac. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/JPKI00603933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4b5a495b4f7242725008ccb79a6d2bc5f5eb18c7622707ee6593ba61030575. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPKI00603935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5c8b69f3126028c549a7fb9721d88dcf6a559c7ef41715a96707e3b2556b37. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/JPKI00603936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450ca67899dcc9c66253f46cc4b1d3491ed80e46074f9e2f2db1f16f8c952743. 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/JPKI00603937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc5003c83cc44c02c78ee36f755ba5667ec201094a2af93dd12ddfbd04bf4f7. 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/JPZ921001608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc473236a10d7049cb651f9562416c1aa5d29e89ead869f7ea8c03e5496f4baa9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPZ921001609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d062ae5f3f17aa51c6ce970d2556b56cbca19f82478b42fc058aeecf96237b5. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/JPZ921001613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01173eeb12ee01e4efa2fd19a6e7b5dfdb37b388352062b0c9ccc51e2bec3166. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:38:24Z), 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/JPZ921001615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0196292c739fa528812b43bad797ec38498916e6ef4402de0678ec7aa288d152. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPZ921001620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e767c08ae37c1f345a3558287f1e02588f986ab953d57e25a2852e67a79d44. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/JPZ921001621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9e204846f1cf50752f9d9e6b899f66a8f80384d0cfdbf5f0d759db780ca132. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPZ921004407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb268471505ce3d62b1a5919a040e5dfafb39bd2296615b191d4da74d71fd22f9. 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/JPZ921001622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686eb29c050e8298c89990edcc6ba46e4d6e42e9931d127d5ae3ac1a101fec6f. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/JPZ921112427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f0e7570658d51137ecae48baaf6671e1510eda89c410749571684545c727c7. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/JPZ921211845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f64aaab09bacfa997309121bf535154b8ae2a94c8a63f01167f644b9eec87c. 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/JPZ921309835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ed4fcdcd3878c9adf25c884f2a1ced062b976ba043c158b8307072310d6c2a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPZ921309833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47729bff1af96c29745f7fd2ef7a6c44f29fc51dbed18b69ab3cf1a66371846a. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/JPZ921112428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c1966ebdb201e4e68f7562e7b1ca493c87549f5c729b0f88caf571c00ee1a7. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/JPZ921309840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9731f5f99c3c887aa4a5f2cdd7f623e7211d98942861b5c307cd5e36ce38417e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/JPJ591500936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf284c89155f8bdb9de975f9a8af74a732f4159fc4b06d942f747a2d5b9b0661b. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/JPJ591500940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8bf8ddb986148aeb380694c4d9759aaf17aeaead1519d74721c58f744791ec. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPZ921905769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8876dd1f2f5bf02622a1d91dbc859d67a1df3720be65d6ea7aae2c4448e36c4. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:46:29Z), 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/JPZ921905770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d65103fe7c64d60495683df62c787c7cba99277c361b96ab75a24cfc96bde1c. 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/JPZ921905771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f31880ca9fb098744a96806bb921bf68e3b5c1a730ac0c95861d7b9d59e07ee. 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/JPM792001775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cfc40ca37e8fbbee534e6dbe57651fe4fa3d0c89a43ea9be684e22565102cd. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/JPM792001781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabf09f04aee78582696e3cc1a193fc917c8cfb545100898b70fb1f014a59058. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPZ922006179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccda4173591adea271b51f1c213507e5bde051d7509f974368c966c264dd5c3. 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/JPZ922205222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e8a3aa4da3bafb5c9fc003fd2de93fb48b877a37aea6a804406d21ca403233. 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/JPZ922205224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc01faa383f692530ab8928ced90dc3275b7f737fe861e353d66f42e4804106f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPZ922205225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bd68d22dbbde3963e5700abf66ff80ae3d77205f971436d72b57137377c8af. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPZ922205226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2371c7be2ced64db23b51c4f37964cd29bb8f15248bde9011b5900021238cbec. 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/JPZ922205227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78892d940db4747f86e0df1832d17445b7deb4772dbd3646d4815cb5843e324. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/JPZ922407460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12447d7b2e688fc47d54178bbac7c777fa4a6b2cfa8c1da8887e895b61d2b59e. 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/JPZ922407463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4549dc5ac900c63b7c0700ab11b01ffbcfce27bf6c219635b3cec67dea1ee08. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPZ922407461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8022c4dd47ba20152f682773db3313c2aed1f3fbf396ae645a6a3fecd1c5680. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/JPZ922407464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af4925a2b30347def7491bdc3159521b2c04fc96fb48fd624646028a45e55ae. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPZ922407462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361968dd18603ddee92dc6fcc3c0e7b4510385003f1bdcdddbd5c1589c833d0a. 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/JPZ922407459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b77a561f38259a36952d415151e3680ff35d0760aeb9af961878c8bb3f63dc. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:03:28Z), 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/JPZ922407465.
Timeless Melodies - a tribute to dustbox -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ff4e34bec3fe1a9d2e082fffe90826a52bde238469ed9cf5ac9cdd27e6b6ae. 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/JPK402401178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8327d95bbf7dcbd016df4d8111db24a8c042979613810befdc864ed25606a68. 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/JPB452005583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf40a897291ecf7da448d45b28bb18765d2c39a76bb07546674b95b7ddd51c78. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/JPZ921005363.
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