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 0xe285165cd0a71b247556c99813d55bb9bc80103ebc9cbeaf9bfac9f1aa74e216. 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/974869da-37cc-475e-9ad4-cb3d47cb119e.json and https://artists.proofprofile.net/proofs/artist/974869da-37cc-475e-9ad4-cb3d47cb119e.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 0x7fa57b0dc45955f9b00ff94761c527547d347f6d74ca7e391028c261fb561102. 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/CASD10607054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1ba0f7abd123cc4bb1d278f3e15f8bc6da49c2d7774b65f7f5f2e363e77c1b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/CASD10607055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac03a8fe284a5eabd730fe7b0e82f6f2c6ab73590b4550d2fe35c506a6c86bb. 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/CASD10607056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad2046ae23b655ef5ac63417d0fe3a8d63f6e6c6318c9b9e78f6d7e32f62ab3. 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/CASD10607057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2bf2187bb310b726ffd140a57b9f9c69ed3e7ebe2124dc7b583cede2ddf9e4. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/CASD10607058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b21415a53a92869d24975be4ad46aca5484196468fef881d9b4aa1cce71ec5. 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/CASD10700541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cba8c9fb78c9243abb5746c7301913c36844a6726250542971b09b82edc8d13. 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/CASD10700540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa594a4ece416a9605a7d5c3221feed8052d946b2fe9a11704b1ac337a1e85cf0. 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/CASD10700542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a462e860cd7edba3768103efe3c4dd8a2574ce956b8cf27dca7abda05fd2a7b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CASD10700544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c167fb640d8fb5e74226e3e59154de364bfb728dc732f0650f1b838e3a0f19. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CASD10700545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b622d1467d91ca5be6ad9b8ac32698df574c4f723f48f95d0cd59be3ad1b19. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CASD10700547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d277939d4a6a96e93b1b1048a1c2a17234262cb44aa665eec42ef36bf6885e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CASD10700548.
I Can't Believe That You're in Love with Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda82dd9e16f205f4c852d9a83b25df38a1600e6990d32218790a6b5c4cfd6758. 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/CASD10700549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb1bf2733a8b86bde46a8668ad1b54af4edba1b7e3016f2f03815d8dc9a2f38. 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/CASD10700550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb046d5f8b0ad78d13c03d5e3b16e89f649bc39ead64a8f67f65ecbe6ea0be367. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CASD10700552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bfece698be046c07b0c855f50d4aab53e44c4c321756a6d7dcb0fa6ad60294. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:01:48Z), 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/CASD10700539.
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 0x1f6eeef84b2ef058278c3c75e15b4b60ed76f575edd91e349db6199519401f82. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:02:53Z), 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/CASD10700543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588f9b2b0468614ea526eb8671baa82da452b5925880b6a5b2a5d2717c36442f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/CASD10700551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063b405d3b014c7cd1974256b157d42715c2158a090ee0c0eb421c1b077ac885. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/CASD10700546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa57b0dc45955f9b00ff94761c527547d347f6d74ca7e391028c261fb561102. 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/CASD10607054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac03a8fe284a5eabd730fe7b0e82f6f2c6ab73590b4550d2fe35c506a6c86bb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CASD10607056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57fb5fb469d5143fa463550f7440aea39181b424328100c4202ddbaeec3df0a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/CASD10603065.
Fa La La La La: Singin', Swingin' Christmas Jazz
Relaxing Garden: Music and Nature Sounds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28818720b2f0816a66a653dc5aef6e8cc8b3186426847ef8e508e777bbb348e. 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/CASD11200582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10653899d8a57f05069f923ae92c41dfb8ffba215a5676773763d1774c4be77. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CASD11200583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3aa5de3f1250f7df64a0513f33762af8e06cd5d81f585906bc0aa5bc198240. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:04:06Z), 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/CASD11200584.
No Address (Original Motion Picture Score)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09254a919bcff5e3a9873470be7a1923643255b6451c64f314a154ef9d9f1403. 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/CASD10700386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67ebf7f298eb7a91c87c771485b5cc8cec548af5909e6c29f735759eb36f937. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/CASD10700379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48b78f7bbcd7d33bb833ec76737dd18006f156037e87c9a3656969102499c13. 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/CASD10700381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bc52096f828154eb29f66eba591f982062724b8e8ea88e43c1df5e129d609e. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/CASD10700387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41f0f886d1d5f5f4010e6bbb646c93ba240845700bc687913edba7036169bc0. 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/CASD10700382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc4971996d584230df8b97c9810f5da220f0c558a76747ec1c26c36aa3d1c61. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CASD10700385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e47de8235f5a28ecd9a71ad5f3f637b6a1f1b8302ce935725dd86f84672fc0. 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/CASD10700388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca507d7654fbab65b6a177f153df1d58fd4e166f8757c28cd51e4e85c9741f5. 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/CASD10700555.
It's Beginning to Look a Lot Like Chrsitmas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7802401619956c627b875936b84f7eb3bbf82d353b3e5efaee06147bc5bcbd. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/CASD10700374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7c2f0924093cc37b58bd3e23167b451b46ad12e829aa3747a321fd6f8f874f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CASD10700376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17615f1b09fe791cc09c1086724afcd8992745eb216cc74d88e62d12e98577f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/CASD10700375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ade67fe12175d362b50ea199723a88323934b14b83c710717768801b3444ff. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/CASD10700378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f4253345aafed4d5a0a330bc2482aa8f697e37456295c9da08bccf0f62a483. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/CASD10700383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd149d95bad7306c128a6cf807e01f86c1f0aed627e6ce96e02ae66eb841a32ba. 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/CASD10700384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3b70eb3e5667269d80dd2ac28e7eed71616a2c1082cc3a164f5e00698da561. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/CASD10700554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30b6816998d7a7ad32752d33781ad9b866af25547371bb9f6b5aafe6f45524d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CASD10700556.