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 0x498272282e657db8615b34363122240af2b49e8d036eab52f0272f9d2383a83a. 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/06ea706d-6f9c-445b-a500-80c3966d5089.json and https://artists.proofprofile.net/proofs/artist/06ea706d-6f9c-445b-a500-80c3966d5089.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 0x1aa594f87b0855e8432383e96d312e1416c3b79060b984939e164c16026e4e8a. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/NOJRA5806010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7abfb4f93255fa8df6673aaeea8d2ade26dcac5866aff66e4dc73adfb2c1f6. 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/NOJRA5806090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed81fd5ec4f50f34bd6a09f9d91fb8d352403910c92d99ad0074f887fd12be4. 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/NOJRA9801010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe133e733a72575af7bfa66b1018d28435408cefe3fb0006c3b21e5ac881cd831. 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/NOJRA9801030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b0d1f558d0f4ce02efd250b96abed498e5e708f0ab89bec0fa40ce1d7ee707. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NOJRA5823040.
Guds Kjærleik Er Som Stranda Og Som Havet; True
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859967c28a6f2a93a91fc84ecc1d518961cd22cb35ca6a3cd7303559b197b1d4. 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/NOJRA5823120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c8bca9013427bad501ef7896f8c1f4a10b576b31a0262cf51024c1c5a70311. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NOJRA5823150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4898c47471291e08cdf5ae10b35c214bbfb09b7db7dc7ec071536b544d17063. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NOJRA5827020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac30796d1fa69ca15dd693265e6dde3e89171b4e7b1d8237215c66c697821b33. 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/NOJRA5827040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafaa37f91c4569fb2625ae735ac78d85a542e9b6a2057daba8d8f87a87206de5. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:07:12Z), 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/NOJRA0001010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0fd647af65c726bbcdc88c52cbc4277b95726ebc83be59b05fc9846e0e681e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/NOJRA0001070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ada324ee1ea3d1eb97444e87b52bb03f4a248e1c3ef14e98c75505356fc987. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:30Z), 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/NOJRA0001110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb418d9559ab2eb12a5b5001feebfc03a38d67dcd807951876395036e92ff2f39. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/NOJRA0001120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba197a49280131dd0df0ab192e77b01ec2b6fd60d6cf064a510fc80e8bd0cb0. 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/NOJRA0404010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88759f3e10a7a967cc8ccb58e0d4b93d18a520c13ad0a52da72bb8e588fa8979. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/NOJRA0404080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa48bbc19e33b6400b062e466595c0c78b71169170efd5e110b75e42cdbb602. 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/NOJRA0404110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25426d4c3a678d0689150863214baa51c6ebf3b9eb007f5df0194a5202e8a789. 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/NOJRA0404120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e373a7ea6463bf9a4cdc54192a1d865a52effe086569f891812d09551cbbd50. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/NOJRA0605030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120ac2d2cc3687e6008dac52329c3102d8fd90dc44cc1899cc6fac537a361bef. 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/NOJRA0605040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a7f3c1ec679f6d08b293c36300f7912248c187122ac8c6fc87fdc1cf5f0f9a. 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/NOJRA1002020.