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 0xf1a6437193fd7bb7bd46199f672c094320eb0a0f0f4cc70fb1b680a27ea2d105. 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/defa307d-82df-47ad-8c3e-30ec73145cb4.json and https://artists.proofprofile.net/proofs/artist/defa307d-82df-47ad-8c3e-30ec73145cb4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zollywood (Original Motion Picture Soundtrack)
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 0x94ac252780dd2ef3d86534fd296071c1818be160abea6d1b9eacef1f1adf40e8. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/INE182460055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b09c5704343e0191b301ac82a37dbf1446cdba9485715f32a85fd186650f1e. 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/INH102413196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c7f8f4c0c79873300c03bef00f72e03933ee5893c072c8207d84c2bf9d90b1. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/INH102413197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e329d1513fdc18986acfcdf6518019e0d32c8d1c00da6f6f189c193adaeea29. 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/INH102413195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e39bc1e803aed97fd3e22e603e79643638a0c02294c3238dcc757d96a75e0f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/INH102413194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf636a6b0df9480103bedb7332c4db3020877256a8c8f832c561a45615dd2353d. 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/INH102413206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b610eebe9cc1875235d9e5c5595e0d819627c05d0e0b32ba97daffc81f343c6. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/INH102413250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff075e3b069e7e3d4f20e2fba8be04cb9f86117b422264149b60a031106dd8d. 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/INH102413263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6576a4bac1baeb9adf39196f70cc38cacc453a83de291830d4c5d5f4c8c99680. 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/INH102413261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedaa4fbafc776309cab86484a996ef2e5c36a94b9bc03a79283a0cb6849b3616. 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/INH102413260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4508280524fcfa85d4075d0b6517ac232a37b79644e14333d7568cb98cca2e. 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/INH102413556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f8c36aadb317d382484d948c2c4eb4df5d8005468e5018997a7a48f29adf88. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/INH102413563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1265a86d9f4e43f0337f250214b486b78978c54ab187e730415beea1e8091da. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/INH102413561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe96682d639e1fa68e0418835717937c9edcfd76f89fcec105bf0331ad9aa231. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/INH102413569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f53e043403a4c9737a86935427fb96ff0b429f90469068fce3fe3bee8b21b7. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/INH102413566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236d6947ba2e7b4c188fcdf3ec45200ab46a34339920dc10ac7195e2485a14ae. 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/INH102413649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41573f89d0ec1e1c8fbe69dd85b3d5a1a271d72977e9848efbeb1c9dd5cbab4b. 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/INH102413660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21db140f7398106ad18695f610491ab6ab6b0c89ab03b1c347f5b02d5c76ccf4. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/INH102413657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf0c4c1f041623419e6fae7b0e4e35da8088024e5d8e7ec0fb553f19d221a3e. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/INH102413803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc011b45db4390838985bf5d373078fb8fa774e4e807ef90734153370fd1f324. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/INH102413800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c55ee5d23af1079f2aa12c367c29c64b061e47c3c48b1f36ce63ebdb295bb4. 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/INH102413802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c41c29e9b08e9f2b1510416ad29a110dc2db2d30e4e42151206ee76f3c72c5. 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/INH102413799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39afc6285779b342b9acb347e350df01f32f4449f869b39c3718df25d825ecd. 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/INH102413798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b85370edf72bc40d468f0fd07e505c1d924af7088c1ed7a11481c1bb454721. 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/INH102413797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70797e5a449389ced78bbece132a96c86a3bfda3249b4818aae8b09983ea5f7. 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/INH102413796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b0ccb66c36e70f6cdcec0f0e80ef74c61f34d28a407b789e8a51764c7079da. 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/INH102413795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf69bcdd3e690d6661089740ec3fa4ef8bc925c3ded265edd8fae516198b68de. 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/INH102413794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d2e346534f08ce5ca378ab035ad4a1430271646db5fa1be93b5bd278e9cd13. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/INH102413793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9000ca1e8ea4a5b8775fad691a640ebfdaebdd2f6c57f416d8ff06e2bb4a61ef. 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/INE182460053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2cbbdc1a0bede7242b0475c543eaeed95f5335a26f796a62340559f0fab45d. 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/INE182460054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ac252780dd2ef3d86534fd296071c1818be160abea6d1b9eacef1f1adf40e8. 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/INE182460055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a172cb8a3a7628ffa26eb8835b6ed1a2248c948bb6a498141ca30cfff838a3. 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/INE182460056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67be458aca1187ee60c3739dd572fecf5d6a163c83f58ce2683728c04a3614fc. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/INE182460057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b67620c4b834bca1d0189d9103a73e003d79d859e5701dcb4b9d33a0524db5. 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/INE182460058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8219093c9e0c21845cedfd13af126e70a80fdf01ebf397f2111dd69800b5b430. 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/INE182326658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a38fc1a7fcd984858315e0e5b755d47b3d66fe879d03dbfe0cb1e788f78f242. 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/INE182326659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc96381ad1eeac82341ede0884ffea0f8cadb8c48d48bdb27e055fb3698b9e9a. 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/INE182326660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6235ba4c48a254b0453279b763a816014e0724b45cb5faddf21094c4610ae1b. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/INE182326661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e8202b000b984844ca66a3cd9af1b51b158053da6dc25e30ed1113cf1c52e2. 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/INE182326662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49eb5756faf83ac716ff1ee027e71009e55444f27e1109d279e5c299658f32f. 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/INE182326663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff19487b7e901a7bd9d1e2fc197f76d674602bfcc871e641a44419309cc9ce4b. 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/INH102414463.