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 0xd9226bfff0d4541882d8b788a00a3a90a063d05253da45c1caf5256ce28426f7. 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/427b45ea-8079-4d82-8be8-4ad6d5c86fb7.json and https://artists.proofprofile.net/proofs/artist/427b45ea-8079-4d82-8be8-4ad6d5c86fb7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aamuruskon alta - Siionin lauluja tampereen tuomiokirkosta
Siionin laulu 199 Nyt nousee aamuruskon alta
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 0x07f374cf2ec789085e5267c3ed5fd58ab94a69e54285c4df02b394f0b8a055bd. 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/FISRK1900038.
Siionin laulu 179 Me käymme Herra, eteesi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee295702fd37fbb9f4a98a99038ea61f36f6609f9907504fb9477424dc98463. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FISRK1900039.
Siionin laulu 58 Nouse, jo pilvi verinen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5fe9a6efa2bec88b5a94a41681a3dc93e411fb7850f6cccf33cb6bd1f16936. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FISRK1900041.
Siionin laulu 134 Niin usein lapsi uskomaan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3c6e492eeb714b89050c4f2bdb35d71831e87b5796737cc6f9d4cb2aad1551. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FISRK1900043.
Siionin laulu 201 Tie nuoruuden on avoin edessäni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe480d39101f3dafefd190f241a782a68fa663c8d2a9e1526b2459aacbb8ccbec. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FISRK1900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fa4033bb5e83d4a3771e514d9d308951da8251f37aaa70a3a128a064c0da67. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FISRK1900048.
Siionin laulu 350 Anna, Herra, herkkä mieli
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b355639ab80f093be0bba01fedec1ea3b75594aed8136c328eacd29e499986. 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/FISRK1900049.
Siionin laulu 365 Illan varjot pitenevät
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae48afe7eedcb2d88d7a78452f343278aaa5a4e7055a9a10c2ca34bd2600ede. 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/FISRK1900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21be6f6daf33d4938f434f3f7796532d7df631e27f2d6d905b6bfcd7d9ab9b35. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FISRK1900052.
Tulkaa kaikki kotiin - Siionin lauluja ja virsiä soittimin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd230d22dde262c92bd2ffb986394eee2ee2ed8aa1eff8565a9e20ab69c715c82. 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/FISRK2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dca98a052eee1362aeabf024e011e19c2ef6e399d05b50691246a10b494cd6. 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/SEYOK2239440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50c307d211683bd7952309faa92f35f82be119a27646a54eefc961cb2140005. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:53:21Z), 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/FISRK0400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35be5e6b8ea9fe7a3bb805f60c468257ec0db44ff534932cd8cd251b6697c0be. 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/FISRK0400018.
Das Orgel-Büchlein, BWV 609: No. 11, Lobt Gott, ihr Christen, allzugleich, BWV 609 (G major)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865e58f9ff44cb818e3fdd9944a4b58610a318f25fb08e9b95e0fcb2fa6fb1c1. 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/FISRK0400029.
Herr Christ, der einge Gottessohn, BWV 601
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059956f4b67ff52243962f5877acee0bdc5179456b11ed0fa5327058b5d2a903. 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/FISRK0400032.
Virsi 326: Sinulle kiitos, Isä maan ja taivaan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b522bcf3f1a5bbf503937bda6afd1d9a813e43ccd47412243167ba075706ab0. 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/FISRK0400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7a7bc76d3b9b5ec5b8eb0027fa7f79845b29fd7bd394840d2d5b4f66bf482d. 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/FISRK0400034.
Siionin laulu 36a: On Jeesus, rakas Ylkä
Tampereen seudun Rauhanyhdistysten lauluryhmä
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6c4930aa106440454df970618d81d5470d31b61dada97f93b4cd072993c4fa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FISRK1600241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7204f082138371b6d5a8f565a1797e8a9d1198edb1e37fec38b44a851ce55f. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/SEYOK2239441.
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 0x325d2a22305ef36ed0ec3954c5d6f0cc1b369598d5458ce81949845cf0b75370. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/FISRK0400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a65e0191f1414151e178cedcc48cd32c574303ba563c81e7bb03dc0a30b68f. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/FISRK0400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5b440a00fcd7d9cdcbb3feb0592b788e666d28dfabaebcad08a6bffa0762ae. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FISRK0400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14f454b6fcfe035c7bb3a6c27e49225de8462f8373aa05ded7386d3effbdec4. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FISRK0400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ad8700a4b92a6ecf3fd431ae3d38279cfb155863043a4bb7eacadc255866a0. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/FISRK0400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7768bf39634e90b79f93d1d76fe3a5113f4592d46b668a52888098bd7c1fd4d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FISRK0400031.