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 0x8b04dacfd792addacc4404637eb3d31637fe760463b35a7812f383e39dc54b05. 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/235ec6dd-da88-4552-88f7-27e9d0620476.json and https://artists.proofprofile.net/proofs/artist/235ec6dd-da88-4552-88f7-27e9d0620476.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 0x584bdd7a7e995d7e1a80d8b5f16bb10494f898eec69d7fd16ab23d55a13f69ef. 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/FISLS9900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631409d863f1b0fd19f03487c5dc334c3341bcc5618b35fa4e13a2721ffbf85f. 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/FIAAP9420301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127da7c7f7c1082c2a3f7c9b8590ab1b839cf1b4355f908001f0a23e42eed233. 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/FISLS9900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dbef04d0c4d664a9de85dba2a3ae36c19a4ee120b6aa1edab258195b57aabb. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/FISLS9900017.
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 0x6d1ba623949065a83dd30c82ab03561aa37cd76d565ff5b77f65a4a9d1826706. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FISLS0000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2293fee1a895577cb4b50d38a7c3a21b143e3b3393c9601ea121220741104a3. 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/FISLS0400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad87603e2d51fd97a2f7e36450f2092a3f20b535f7bad9247892c223e864434c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FISLS0400020.
Kuule minun ääneni (Hiljaisuuden lauluja 2)
Pyhiinvaeltajan laulu (Arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf73dde14f75ec82dc915324263c5cf93b28461ed553b3707206137b00f741de. 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/FIFGL9200004.
Han ei ole enaa taalla (Arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee10c287e65e620bfbf624bcc642fe2d9d4ce9b100fc9538b7c69133788830b. 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/FIFGL9200009.
Kuule minun aaneni (Arr. P. Nyman, P. Simojoki, J. Kivimaki and K. Mannila)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6899ec3478d5b92af428d74c534ee4f9fc53cbda320b0b77e47578081696d151. 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/FIFGL9200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39d6ec8f476037eeed5125cda8e78c37d24cad9a6b04df1417672d825c18c8e. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/FISLS1200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15229d53aeaba332550fb842ae2a139b86a361bad40c6457ff66feb42c101cb4. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/FISLS1200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4dbf5a3700476383310c705233d6ad64c62d270ee29fef5eaa2152752ca806. 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/FISLS1200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21577e5f31d1dcb6356e03a423fde667bff12b333f04e5879178e4eec6084f6f. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FISLS1200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b6a9a14335c6138b69339d1f721827f5e46fe7d9c21a8fcf16716b31f0cec1. 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/FISLS1200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db27490a2d13c491fe3ff37c1294da75ef179df274cea1dde9459c0c15d2761. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:08:15Z), 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/FISLS1200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e159947ae48a6420f46d5eb4e83e350b850e25ac356b4ee1111f0dbeb0f8dde. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:03:49Z), 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/FISLS1200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bb6b1e40de829d0b952be22807e22a87810ba7f73ff49e2aeeb59e36ce5aeb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FISLS1200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f19a6d602d80a4085a75d23ce6af4bad50de3e3371465ff37315642932e0cd. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FISLS0800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3b3446288e7539c521a4447702ae836d32d6cbe4d5e4479ee2a90a98c2742c. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:54:30Z), 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/FISLS0800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74321456f72ce061ba4a7681cf7c4ec680b694e3c9cc3f5655627ebdde754622. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FISID1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb8e004eaeccb52ef73b7ddba5b5eec2fd8f1ee332f1009399ba1448c27cc9f. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:17:32Z), 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/FISID1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5393999d3d678d1fecad91e9da1b1ad172bb4574856d9aea2a2b23cf2da74fc9. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/FISID1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c776e23aada6c66fb53641b30ca52ae287d9ec8c90f0f268eb2fc9052b10ca. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FISID1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef2a170a43f1db9513817c96981c7f86d4034d75b2a69d31c8c30b37af68f02. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FISID1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffbbc593f22a3ebc8ce737afac4c7e58e758275085e21177a818c2b8e42ef0c. 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/FISID1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb54bcf61d8cea51b1f6fe80adc77a6d03db614b13c5a6e4afd85fbe17f8e912. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/FISID1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4654c49f8b9c699dea8f51eb60a2f1589c66cb728d8466545ad191215e247e6. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/FISID2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99f41c77e45ef6e6d6cc01b0bfd2651434c48f41767a09eb82711c7ecec538b. 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/SE5BU1948591.
Lopen lapsi- ja nuorisokuoro sekä Timotei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba20deb9a0598f34c50c873934236aaf2bdb7f11cdb8baee00b8ef500c0a50f0. 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/FIMTL9900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce0cec2315d6555feaadd5db43c9a464dbaf1c333e4d5a0ee5fa2744a57db47. 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/SEYOK1926979.
Kiitos, Jumalamme, Kun Annoit Kauniin Maan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229d3cd8ea3b1fc4079f99512d44891498daf04dc358c77f5d27e91837c641d4. 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/FICLZ2000014.
Syttyköön Sydämiin (feat. Pekka Simojoki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb7d243efe6b3f66e0066faefb5f0dd39fd1f186ced9c98e5df17cbaee36047. 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/GBSMU2459492.
Jeesus, sina huomaat (Jesus, you notice) (arr. T. Nikkola)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3a2f4a468eab0df0b06b2d6d3e328e75a427f2bab80200647d90a51fa840c5. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/FIABA1200180.
Pyhiinvaeltajan laulu - Arranged for Choir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b5d367bdff27d0182ea01ed8f036307f85ca916e66c159a32790c6c969624c. 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/FIPRV1300001.