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 0xcd467090d60d0226876f5c7a64269746d81aa2561d42f3f5e0ebc0e906c6ba6a. 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/d9adc850-e173-460c-a969-175b4d0b0852.json and https://artists.proofprofile.net/proofs/artist/d9adc850-e173-460c-a969-175b4d0b0852.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 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 0x91518597d531036f8d5265fcbb69eaafb8348c8a57af3a2e9db2a5ab1add8323. 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/FI9PF1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e0ac9e3757169003bd919468a244fb58f0f6f886a9e6295d3f81c1125cbd29. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FI9PF1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055eba4b1f94907fc29ca4eda66b040404c525b755343e0e76a2de2320f69c7d. 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/FI9PF1800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29d7849345f651b01e97cbc88d7047c3f9f59f5fd26d41021614618d7a12e24. 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/FI9PF1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c1641112cb764cc5b9e2511323aa5ce5da4725c29d5e9028259a4d01057bab. 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/FI9PF1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72546a3c35c7f25978c57314e9cfb173fc176b9df3440515b46735693daaed44. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FI9PF1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a3bcb812a501bab5bf614877bd8ee64dc9151fce8707c4d6e4461cfa1daa2c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FI9PF1800197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208fcced38be127a45570bb1f1142f18796295f38ad59f28e6bc20436dd09a44. 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/FI9PF1800181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fd37dc4b2af2598dd88a3136f3175b796e863f398332aa16591c9168d2db24. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FI9PF1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fdae56cf15adb0cf6604c57ec7e3317ed453c5346f8f8ecf4846898d101fba9. 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/FI9PF1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cf8649ffc633d8b723927bf418a65631c239aaae37ee903954dde2b2a80711. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FI9PF1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fde6ce222681388add704e8937e30ecf18037faf254a548c668c2355dcad4c7. 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/FI9PF1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57ac0b8f84e2a4aed13a3ee77c96cdc7ac9ea84b71d17024831cc9cfbd12ef0. 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/FI9PF2000184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bebde3a31ef61cfa49d372d2355e3d53972fe033e3221e6d317405224b2a4f0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FI9PF1900221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d80411dc7c644bd2fcc106b8a11c307433ce0c485520f35b07d13cc3394d00. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/FICB22200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054ac7253cb9002bdf811d99357ec1d2bc50688fd6e7667df747d2e4481883d7. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/FICB22200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3358894fdda6e7311e48b3b0149b728b5cd05f390ee8972fcad93b120af9de1. 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/FICB22200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf94c8595b81a6cf9a0b8b40b118c72e5fe03d756bb21f94098e55c647a21a51. 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/FICB22200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596c6f0932ecc540b16acfa18a3928623d3b0e3477a723d25606409d074d3f39. 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/FICB22300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d1214e6637169f3937ed9323374834a979a4ca4f178359755f41b749b4aab1. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/FICB22400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7e910848166c486bf8bf53c39b46e20672752d87e73d88e4175d5d703d6004. 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/FICB22400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f5d403d67548906843a3bd10a79d9af2ca8d4cb8765a8c0ade6edf9463565a. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/FICB22400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca28afeb40bcbb6dd5ae6698435e436cbf5e722c12eabab3a590431198e87f8. 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/FICB22400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ac2937ec05f57f25f66a77270d9cbd613bb12dd1af6cbed640924ca5296a32. 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/FICB22300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911a0156ac9d1f13217f120005b817767bd1113bc037f3404874b264d40da5bf. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/FICB22400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20ab086b1353a2ac8c1552148e2311bbed5622b560cea6494086109d0e8d3a4. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/FICB22400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee7ea65fb1d45995887dccc0e88a00e41063dce0df535fd6e27a30b72140a29. 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/FICB22500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ce2a4b96b918702278a6414ce1dc7c3030b8c58e0427c4413ffb9ff90ff40f. 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/FICB22500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f4c8c570c52eb62924226e3a4b6f8d05a9ac72499746554b71c1e4f221d0ef. 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/FICB22500004.
MUSIIKKIA ELOKUVASTA LAPUA 1976 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596c6f0932ecc540b16acfa18a3928623d3b0e3477a723d25606409d074d3f39. 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/FICB22300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc7c684696346d6988a92521e3b22601791f97929ef1c254980d3269c26bbd4. 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/FICB22300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a119246c42c6f72da5844d2801844a43f4fcf74fdd8552a9cddd3ea71b6fb8. 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/FICB22300004.