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 0x4b156422fc272f60e74caa94dd9428e7bdcbf4ef902c6582be5723ff85a84928. 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/b978e95f-d2e3-473c-bdbe-f7ac5dc4903e.json and https://artists.proofprofile.net/proofs/artist/b978e95f-d2e3-473c-bdbe-f7ac5dc4903e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Godmorgon Columbus (Cover by Skitarg of Pontus & Amerikanerna)
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 0x2b346422a2e2f42312d459fff43dbdf72bb312f9f9212db5c464ecbb81d333fc. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/SEY5F1000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547f9bb0b932a30c9d0735a2989f8fc1cf7bdce78280c37cad4f9423840d931c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/SEY5F1000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912490e82b39cdcfa880fb901a03de6a6b4ee2fbb0799d289f63ab21e80a31a6. 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/SEY5F1000114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0cf56118a1e35a664b6deea95141d98d1149ee8b7c73b7bb8f708f2a4c905c. 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/SEY5F1100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0bca1f50212487a59581556fd318a9b9061debbf0a0cc4942d2e7e919d7d2e. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/SEY5F1100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a88106424c7c789aa112f61c768e748536efe7908120ff0aca0f80b3da54b6. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/SEY5F1100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042142ecbbfbbffcd0bed2be38b096801db75e011c07a8c1401d186c91f27e64. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/SEY5F1100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363c429e486f20feeb64e2a63dc3d60b8f84e8f6b72b47780bba1215c8021457. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/SEY5F1300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fef3f20f6fbc96eef61e04c24c31f2edd542cf086b4099b478710e5ed6a4da9. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/SEY5F1300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66a2e78e553ed2d265bc32ca7ed16ab2ed89c83cef34441d5d09f0834063c84. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/SEY5F1300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f193f401a1cfc949d8dc7934bb11c4c37acb9a9be3f9d9db43e301b9c8b6466. 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/SEY5F1300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088d944887d5cdc623aab0e2423e5e4151ded1d814a74cb91bb2e63db30b24e7. 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/SEY5F1700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c4feb5141d005a2fd49ea46b00c96048f09ef1690a3fc63062a9d9220d9742. 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/SEY5F1700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a152e0f84fde9f6bf6bfacbf860e3b0d0bb6608125dc9ad1610a21f1c0b7e8. 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/SEY5F1700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d460bfdb7897953e0769b3f600a1bfdd252ebf75fb055e64eac8e3821f4340. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/SEY5F1700109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136f16068bf981e853cfa024dc76a6034ff9eb65cb01361d6f94d186aa18503f. 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/SEY5F1700115.
Tungpungligga nekrofilhormormonromantikmanikernas nymfparaskitfåni (future widescreen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac537fde0fe23ba0623419e53bb632abc2db15bbdd99bb3372b216d042c682c. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/SEY5F2400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d72fd16d9704d8121378f1e2d3ed6a1e8edb4ca62646696199a71e0543d3ff3. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/SEY5F2400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d786631ba3e3f76ffc04be4ba31f9dd6dbcb8189c8b1b81ac927122a1316b96. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/SEY5F2400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1340d60a40accfee3e1f050670c94caa32687880a7798b68324a4b5391dee5e7. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/SEY5F2400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe029767682fe40c6ad585d4ecdcb50a62ab11369bb8a92cfa7836f3939403d96. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/SEY5F2400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc513c66b18997349bd9e48046ca7e10d1689bcd78c5c693561e017638891b9a0. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/SEY5F2400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21251915c576f1b14e2894242cb9c0e4a823f652b8a7f8b0567103432410dbe. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/SEY5F2400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa8ea5ba4fe4f6a44c85edfc37029970fe7a497a8b3b734b862e4cba23843b8. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/SEY5F2400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49891b4ea35bf654739c5926494ceae862a5f4b6bc8e679eedc9fb06d3696084. 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/SEY5F2400114.