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 0x5f7bf76663e3b8b7b080d229fe81e44eba3bd052dc97866a5645ab2d8135e77d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4164e07-a34e-4616-a836-9892b5400d6e.json and https://artists.proofprofile.net/proofs/artist/d4164e07-a34e-4616-a836-9892b5400d6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
White Noise Soothing Nature Wash (Loopable)
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 0xfc23b18517a7f5f5735f91507ea3c74c1de24b6fb2d1b8717a95f5160abdb403. 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/USL4Q2076600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d8b4c9089c224dec351bf0880d18bbbfa6252afbf732b1bbcde827110fde09. 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/USL4Q2076601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b85cb0632b7eece6739200c6787920f28a0891b9fdc1a6b35cbbd4e0cfca8d3. 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/USL4Q2076602.
Soothing Summer Waterfall Tuscon (Loopable)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dda2fc39f6bdd4ded98f946bbb0f6f3d2f66a8c77251ad7cb8e2f6d21c794f4. 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/USL4Q2076604.
Caribbean Sheer Rocks Dusk Crickets (Loopable)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ae8ccdf574a6fb90d79dd54ab5d19125f49097034d8d73c0f808eb132e4c12. 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/USL4Q2076605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf283e1f21a483d64fd50196d4e77c07e3c92164b174446ac61745dcae53181d7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USL4Q2076607.
Sequoia Dusk Heavy River Flow (Loopable)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce99d1b326f6115fc0e9f0189f4f3545e96a8a7dd42aed6e02925cd2029b8049. 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/USL4Q2076608.
Caribbean White Noise Rain Drops (Loopable)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eec4803eff8547d9540721640bc7076558deefd398de4d7b1f8a289d244d887. 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/USL4Q2076603.
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
White Noise Sounds of Sequoia (Loopable)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd1dbe1b2ccfe7c595c62a54585f3b8d68608fd4068753f29176cb2ba7f6f56. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/USL4Q2076606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ab382ba95d2f16d45c76ac8938d9bb19f45ccbe2aaf302c3c502f60108568f. 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/USHM81881397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aba851d1ff931f0fe81ded5df8bc5a98d06691bfe63a24370b9df823e595cff. 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/USHM81881398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ee6febee2e82d08e386d029b7d72c6ca9d90eb8a83af55024a02ad859a912a. 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/USHM81881399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd6ac177dbd43640fa132630350433687476f6d25966c95aef2df1b271bfeba. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USHM81881400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28caa9f99cf9ed48df87022cb25abc4dcdc91a7eac1c1a7dd54d55973dd7b17b. 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/USHM81881401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbe25fa15b1ce76b176f59862c0f3c09eeab9bfa296215ddeec901d62f114da. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USHM81881402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a98d2c78412ea3b16acc36cebc3cb869423f9ed634a207c0eeeb29e854ad04. 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/USHM81881403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcc4761169c90c544e9cf2a525d46e6363d6ad4f9b40d3a8d089767f33c828b. 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/USHM81881404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e21cd7f2a5b7c5daf1dd6e20d57316e44b0bfdfbef7e73c0673fcfa6ead1b51. 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/USHM81881405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac3f311a3b4aa6a6a1a76e3ad88bf85a7cee868d80f37bb0482377e5d29e598. 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/USCGJ1887078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd75bc2d7328193673127fa1feba0413419aa675a9a16ca40a2663c8f841fc97. 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/USCGJ1887079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3743ac3c9cc67f19beede29dbe96f048c664fe37e20f6e77b56473f3fe55faf. 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/USCGJ1887080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeddbe5993992d8404282bf1a4fb7323d1afcafb2b11e4a7709d649b418cad20. 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/USCGJ1887081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1346419f487b0191042baa721ff0645a385077c52c6183ecd1581bda3668f9d8. 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/USCGJ1887082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bcd19b2804695798d39a71c4c0678bd48d214ef4aa0e00aca7747420f37f83. 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/USCGJ1887083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dfce006d2f23c44d33b2d7d2d8ae962dbad490e25175f5dd58ddffee4a7e99. 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/USCGJ1887084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003f52a34e33f9908fb2541e93f06200fe013b123623ae4c2110355ded0a13dc. 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/USCGJ1887085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583846bab3479aaf8b4c804c16bf382b0e849e15d2c2e0d79f3243ec46dced19. 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/USCGJ1887086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6a5b118af1bac8bc5b847bf0d0b270b019156f5999cfba5e8e2b7bfc5d3b2f. 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/USCGJ1887087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8e00bca364fa6defba200c7cd58b902a121b7cb6e0ac62f9e7b767e052accc. 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/USCGJ1887088.