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 0xf0835cceb2031bed8857c19f90b39b7d1fa8f721b7c28516f2aa52162b8f0439. 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/3384dc4a-f1f1-405b-b11c-d2d5dd391c6c.json and https://artists.proofprofile.net/proofs/artist/3384dc4a-f1f1-405b-b11c-d2d5dd391c6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hacki Backi - Og Andre Seje Sange Til Børn
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 0x484691c36b9f38d0adfdcac313fedb61ded5266c6352e67f055c2ffa311f9eab. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUM72203175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b577805492d786295755e2aa7d4779e0974f72124ff6b556fec4831441e87b7. 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/DEUM72203176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd590099bf7a72c88244d1908532f780dbddcf683e94513156a8fbaa2e964b0e6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUM72203177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445f93545b9cf3590abfbdb923c62f7579196dc8bee3be11f96e43572c1d2d30. 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/DEUM72203178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb71277c54415a2776c118ac955b79b207a90831721c82afa11af55a713363d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUM72203179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd37259594851876b263f8903882695d80211113515f1be6586550affcab61a. 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/DEUM72203180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe329a31a85950680414c33e620d02a469f78394f8eab57780638cb9446f38b0a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUM72203181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcab42fbfcba27bebdf057ecc6cc9d145819e245a4dd77b97003218634464826. 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/DEUM72203182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c574c68dca2471dfccf25a4010f76c48ff441d455ced83ad2f0d5bc639709f6. 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/DEUM72203183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc831af87aa10a7b0a9121b303ffd31be6a58cc22ba6aa83f128ade7e959b80c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEUM72203184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f45318d5b07ea2290fd99003ee5f2b50c3cea901ed818ea3a94129871ed7df2. 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/DEUM72203185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00f48514b379f59e0c4afbf2fecbeef1f8a221cc8b244aa1a66fbd810f48b80. 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/DEUM72203186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92dbf8abff2e94270b5cb14959873a76ae0708ed9fd5463dd419efcdd14b8822. 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/DEUM72203187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a4f0c4ce744b8165833e7744bd5d1f8febc13aee52e80668282409abb8e575. 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/DEUM72203188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5823d0b0474c34e84f961f3bc5fa1184e660bd7eadbe9d02a54dda7021492ca3. 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/DEUM72203189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c865fa483c19fd3d6b6823c357cf76515abf7e236cecc5e24a27233f6c368b. 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/DEUM72203190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80feccacf671ac57a67a513ec9cd7921f8ad208ac361a4ef65dfb1844f7a4830. 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/DEUM72203191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7406545bc536340ded625811eca7e510809d391a87eb7abbdb0349ec9179f57e. 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/DEUM72203192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f91e77968394c52fc531f22ad396b563884749f59308485645af332a08c58a9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEUM72203193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60090fa57fc9b032ea2b21c0bc44d3b0f2a33680f30b1cadadfac012d41b1722. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEUM72203194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e93406a4a0e1d14e7875aed948c30887b8aaa3d044a7f91cf7ef95f49a8066. 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/DEUM72203195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374365058ddd2fec3e415db6ae032d146f0ce85e79d461e3f882348396e76a6c. 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/DEUM72203196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bff6c76e6739482b4d9286bbe3830cf4b877359f0b902b192d20fb4542b745. 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/DEUM72203197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c2162ff5102df45229fcd87ab4e1f98a45973fe01684873e96eff680d73555. 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/DEUM72203198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e63fb75e43fc7ada18ed6e882b416971589bdf8aa1e21fcfcddaa9d014419bc. 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/DEUM72203199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba241d3a2b88a5c0bb754fb3669ee522afc59b453ac11215139ba16880858c0. 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/DEUM72203200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1a3894fb4f40c66d186bf330f83a98ad50f5c0e84aba76b201bc7fcfc207f0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEUM72203201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad72bbfb003b3e3f62f2fc5abd509feb7b44e55744d09cf7d1d12d6d2c877d8. 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/DEUM72203202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47605fc582f503f70459535c9acafd569157fd7876942b61481e7e1afe43eea. 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/DEUM72203203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1fa3abb44e23e1d2b54f35b2d9ce47314316cf5734d1e9a397c3419b0451cf. 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/DEUM72203204.