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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaed6f8791e321ef5b7e930c18370cc3bbfab53f36474176c624f2ce00041b3e. 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/09ecc831-7424-4da3-a3eb-9653c28bc97f.json and https://artists.proofprofile.net/proofs/artist/09ecc831-7424-4da3-a3eb-9653c28bc97f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Physical Violence Is the Least of My Priorities
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce7d612059c97017db31c06fb70f2d5a023b7f99791db904fb2b30ff42dcd71. 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/BEH551600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a7740a39777d159229457811823d028437f7278dacc593c6067ab4cc4f4298. 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/BEH551600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf79e70ec9ef73aac8994f0801e0258d9f3cea05649a79a001d86703900d16ec. 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/BEH551600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89426b75051615cccf2f0abb2ea9f1eec92ebadd442a718d74f58f78250915a. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BEH551600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd4d1d3875e8f31cfab200d733cd47c697f02a405b2d100e5ac2629de4a4321. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BEH551600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e9a6e1df00085709cad267b9d614835bb4e45af6d6e5b34f67ba0391c5793f. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/BEH551600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84e087551fa4196e27268d127a517d1817d49c6b858d74548f52507da1d904d. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/BEH551600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1ad22637b81eabc5be6ad5a5d2b62802d9d656d1838177e865a994988e3766. 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/BEH551600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7492b513ee9a7ac3933c4a3c6acfa9c7de35656f1f579566f6ebdd134d8a6d6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BEH551600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004e2b45ab3bb9c9914aa6914e02a73656046d52a5087c92e893b31f70424168. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/BEH551100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101628b1ef28cbe9ede3b4256c386f1d61f1ddc876a9cddb1dc5451ea9318922. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BEH551100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233577989ecca0b90ed4728f613a6a95c72884081c37d73e2d5cef7313c590bc. 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/BEH551100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc924821741f3d6ac67ff8b3f7013fe6b0ab365b6efdcdf21b13e1283cbcb38e7. 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/BEH551100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b5e5dd1898db43ee863646f1779b6b3dd12d3f6a4e465b9f5063db431fb9b4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BEH551100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a79fa862f91b15c89637f5c55c2fb51bf5d1310ce7a3f1804c7bde6a1849550. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BEH551100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0348eb47f39c68a8281aba74fb771a2983bd8afe90818669ccf9850e0fe148f6. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/BEH551100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950bbe347305cea954b8694d464454ab8e100360062277d3996332c057411f97. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/BEH551100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d43df7bb639c505b12c48df87eb04f8c8ce1ac95564a1f73586d5fde8634aca. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BEH551100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35797780f7f12cfe6f04b4bc4db291bbd776b1d077510a363e620af984efe0cb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BEH551100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0f664e198a1708ef05c073353d1279f3d8fcd78f9fa1d3f62c89af2920cab7. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/BEH551100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bee61dc5e11909926719aa1bd18e6078536867c2bac69c4042d670e6b465b3. 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/BEY440900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9228a2a5a05ec84d914d6cd4632f6533f3f0cb6835f8bdd71194ff50f1335fe7. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BEY440900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0c00afe743affe78d6d9e5b4625f2809a83cecc85afad66951e3e181f90bc6. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/BEY440900139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cf314cdd2546bb2e61c5b877903596ca361c35585a47916dcf0ccd4ce98575. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BEY440900140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3278d0ad6d6bfec0843b348b64cb3d7eb0536485eed2ed751a68bb0f484d99aa. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/BEY440900141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583ee3aeea2a3d3566276ee050e848f64b84a25bb1a18236ac86b7024cf553a5. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/BEY440900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2478e9bf86d19052e5b4a72f6639850cb7930919cd99ba10e3a11e02af43a69c. 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/BEY440900143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c27a32c02c7ffa68ade1b93a7daf75c16d1b14e9cf70a8140f09c46beb9d9ea. 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/BEY440900145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e5c3c6d874126f8d879f1bacc9cd25d77c79c5dcc39e6ea5ebb50ff968a341. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/BEY440900146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79aaf9a71537b9d13fee17c249b3141acfd28541de5d20c483b2fad1e504dfb0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BEH551200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233577989ecca0b90ed4728f613a6a95c72884081c37d73e2d5cef7313c590bc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BEH551100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004e2b45ab3bb9c9914aa6914e02a73656046d52a5087c92e893b31f70424168. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/BEH551100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101628b1ef28cbe9ede3b4256c386f1d61f1ddc876a9cddb1dc5451ea9318922. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/BEH551100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc924821741f3d6ac67ff8b3f7013fe6b0ab365b6efdcdf21b13e1283cbcb38e7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BEH551100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b5e5dd1898db43ee863646f1779b6b3dd12d3f6a4e465b9f5063db431fb9b4. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/BEH551100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a79fa862f91b15c89637f5c55c2fb51bf5d1310ce7a3f1804c7bde6a1849550. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BEH551100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0348eb47f39c68a8281aba74fb771a2983bd8afe90818669ccf9850e0fe148f6. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/BEH551100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950bbe347305cea954b8694d464454ab8e100360062277d3996332c057411f97. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BEH551100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d43df7bb639c505b12c48df87eb04f8c8ce1ac95564a1f73586d5fde8634aca. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/BEH551100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35797780f7f12cfe6f04b4bc4db291bbd776b1d077510a363e620af984efe0cb. 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/BEH551100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0f664e198a1708ef05c073353d1279f3d8fcd78f9fa1d3f62c89af2920cab7. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BEH551100012.