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 0xa52012997fe66f3113a616a201bd149b5b8cba6cd7c0525b34ea85d2ba7769ed. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8541232-a812-4fd8-8a51-0b354c049a67.json and https://artists.proofprofile.net/proofs/artist/f8541232-a812-4fd8-8a51-0b354c049a67.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 0xb52c9e8d364203fd09108fa2e3172f7f10fd07c96a403efe01a043cdb93595cb. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:59:49Z), 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/MYA112100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e4f790b71684a5f52064913f115f2abdc2b5831c899c5350b3ec06d1d7f966. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/MYA112100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ff4f2079ad6e0fa36da14b9b77c90969b56baa1687cabd872b96b06e77d65e. 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/MYA112100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b790c4f1ab1737896d6d17f5230fdd0e6bb61bb250e208bb634d09fee017dfd. 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/MYA112100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6b0f2ae558b24c4dec9fa062ac80e80d5bb013df5e7d347e9a81c65f26653d. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:21:01Z), 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/MYA112100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62700edb3013668915631db5115033ce914778eb112a988b735d7850833e2a5. 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/MYA112100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765f707b93133ccfd1f5b7e6444c99295b4e4d9275b4f245d8c90e5291d69c7c. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/MYA112100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5657eaff01de1aa090aebb768d0ead7a67ab497e73d24d5c56849c5d0e505d6. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/MYA112100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c61fc222b6f7e58a86f05181797a5f540fed77caf78fec7204d1612d9af36d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MYA112100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c063260928308a97e1b20c01757a76d1afe0ebbc2864ed2b5c6fab68e9f781. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:07:38Z), 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/MYA112100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b800e54d6e298bcc8eb761b7dcd3aab514064ed981138ff0dd368798557e42. 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/MYA112100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a80d8918e5fd2c2b7f25e98b0db05cb206af5e033c5785facc44e619dd6889f. 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/MYA112100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44c7d5e8bdfce0b0efb5921969dd8a7ceceb09529e2572b0939f4dc5c4bce00. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/MYA112100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5fd265b8afc6f2e9202e359a99df2e36e53abc10db29c257727cd0513bd733. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/MYA112100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5358970e3d4b268e561dea989ed224c9d5115f52e0294b89cf7e394e46d2b3f7. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/MYA112100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262900b33aba206d0bd24fa47543b87334faf8b02c3bc069d446c50af785d0d1. 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/MYA112100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1476008a8c9835a2090e669e0f7bcbf9769e4fdd91186ab828343db58959e1e7. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/MYA112100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57233da6ea69daf1b87485fbb532cb8fc66fcbd200957e0760d3dd11fbb450c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/MYA112100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd83e65ac54529d9a73f8818fb9b2906861e960a39751145f729b4c61c5d1af. 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/MYA112100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b8c750f625fbd75b5286ce3493f4b8fc10a4e4cccedb1baba4d8288fad843c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:08:31Z), 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/MYUM72200012.