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 0xf3b65923b81eaaa0a284e9c21370a8f00c243aeb2cb0447a86f43d37e1956e78. 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/0484d8d0-8cc7-42c3-b625-94d113f1bfff.json and https://artists.proofprofile.net/proofs/artist/0484d8d0-8cc7-42c3-b625-94d113f1bfff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Après La Peine (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 0x34f1d1bba2e0141335eae2ca88ad9b55928559933601f09eedb9f4f706b19fe5. 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/TCAEB1933454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ee1dffa06f3280450bc2c618493f20e695bf0baf7383c84b7eb13d400a1b1e. 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/TCAEB1933457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe210a544a4f83787b1d8b56d754f71a34b38afd14af80a6c195e6668c3edcba5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAEB1933463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6232c22e34ce643756adbaa586f11d80bbb2b86b25839b0e156fbfcee7d35884. 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/TCAEB1933471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cc472f68055570d7fab2b92e7d4da2e8067af32bf01fb5855ec53bbf0249af. 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/TCAEB1933473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca15a1da77e319ec7e10e4e6d17d2a5a940c54330368634f1d6b08daa1a888f. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/TCAEB1933476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2816b09bed3d5afa2ece12ac2e5cc189a571debe7514be7a7fd8eb4d366f140. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/TCAEB1933479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8186ab7b70491dd8f12213ab338cc09bc954b5ba7e77f44159a603c42489dda. 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/TCAEB1933481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867e107d517ebb9fdd98fa7cd2ac894b52a8c9f75acefdad56eb6254c67308c3. 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/TCAEB1933483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0dd63eb70691a3dfa9ef4f21c695e5a6efe39c4fbd35ba7e2cf4517c934708. 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/TCAEB1933487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e4dc71429d1771c999cb3900a51bd6e3f3fbcd2d5da43e1abb7958d9a5ec63. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/TCAEB1933488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c8f96c842a4f67cbb81ee0c93018719fa037f932876a0619c1a7794347220c. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/TCAEB1933490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3550cfcc7e59c2fbf40056c2600135f6fd54945a15c78c587118cb3c79a4a11d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAEB1933493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c38696eaea9cd63f34bfd34bb0c39d374fc8557919296195dcc96ece3661e3. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/TCAEB1933497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d873478d5ca90b58721245df614e91cd021f4d9cbdee01eec37fd021ff70196. 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/TCAEB1933505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f45986e43e7313ef004e8fecd2343c3679dfa71f8d65280f2519b8981e2f45a. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/TCAEB1933506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d740e8af5a040bfed2d85a791eaa0fa70a9884ba27619975215c66b18cff0b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCAEB1933515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ca86a6a6d23bd55ca014af7a5c9970c2fea7f0cf67d295904f1ee97c5bae24. 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/TCAEB1933533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539c5bab31496b85469ab25f2337f16e715029c2ce57837625a1dc906cf2bd98. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAEB1933538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09412f6f44e5ee9bf75df226a667cddad973072cc27c93761ae637ddefcd799b. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/TCAEB1933541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5211c87f1b5e5ea48ee417689ccd8b29aacdc88af5bad10c115440fd5b069f54. 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/TCAEB1933544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67cc1a1f798508706cf2665c5b1b7370da20e6d2f3250d3066b46f546aa7e61. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCAEB1933551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd40bdc29d84a63524befe004adf5092fb91d88c071475c16741f2e2ddf3d757. 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/TCAEB1933553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4302aecfe960ff0543804b405d3cd8f35bf267bcbcf6922b72f38bf86fd8f1eb. 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/TCADA1759419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7dd8103735e4841678d1c5735de1c1f4cdb1dace4bbe8cd0a70e56431ba536. 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/TCADA1759435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b97ea9ce5c36d5a7ac3e18ba3f9323adc64cf768076ae45aa036bcb489c3fd9. 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/TCADA1759440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bfd35154b4979fc2a10abb6478447c2339a63b59522605e4f272c14ad2c259. 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/TCADA1759445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908b00f864a77651eea0873c08a9933bd54060843bf4d0bc4beb1d8270a74cbb. 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/TCADA1759446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda473a9777249c57c754b32e025fda2e43ddb9da953788581ad80972b95da0a4. 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/TCADA1759454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6080330c1a2c2687e6d889d65a39740915c352b85d1f7aadcff2f324aebd09a8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCADA1759458.
Malum (Original Motion Picture Soundtrack)
In Memoriam (Music from the Original TV Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8fcc6d71ffd8f8d34eb07437a3ec5e6daa6b241977426d518493d1c5f649d0. 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/CAOOX2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6847d7705329455c73ce8de3faceb832b9afb0c124faad6f2f6307c1fcd97cd8. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/CAOOX2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edac08af540cae724d67da2aeb7db42187da9479fb786704f623ca9585ede66. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CAOOX2200029.