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 0xea247002293f1afe8b2eeb4c19e216b4cbc09b5bae2cab4721893148633209ce. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f09a653f-fec5-47b2-ba79-e1e3b1b29818.json and https://artists.proofprofile.net/proofs/artist/f09a653f-fec5-47b2-ba79-e1e3b1b29818.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 0xaaed6f08d4739cfe68eead6ef18a521feac29aa29bb17fd30818220c039e384f. 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/NL7CJ2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c29634353f8b2dc47ce1d9e27f7b121c919b0c76ecef2997cf9a14efe05a680. 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/NL7CJ2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fbf648ef2ef952b23f49e04a3851981e1b067c4676c3d7ce6b6f5d3f81114b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NL7CJ2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cb8402d104d53a613513fe576ae36e22110827e4bc022f626fa093fff67066. 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/NL7CJ2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f7b851cd1564aa95ba5a311f81e658c96782fe285cbf828c9638d98de65d07. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/NL7CJ2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9894fa21f9b8a461839317a4f928c062b5ef9625d90a6d5b04412488fd1b34. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:26:37Z), 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/NL7CJ2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755a60439408563614a3bf63c0e329df9a6a6b386755b7c23d5151552086502e. 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/NL7CJ2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0def7065a81065a9cb47002ba4e74746af28b1940cfbb8dd39ec9c6e332d234d. 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/NL7CJ2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc206d261f3d696d02c939fb33628d5a2635c0f386feaef4dceaa4a01b5bead0. 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/NL7CJ2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe394cca6471e50d6397bff5c381d00c9b5dc253975128dff627f021b9215f249. 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/NL7CJ2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f906ce2ea75b6b7989166a036ada963818aa084d84b40202579f2fcc92dfb7. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/NL7CJ2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30e5897ecabd987bd3fa706217c5aa9ed14a42c9207b7859373e709286b2db1. 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/NL7CJ2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5341076134591a52ac5cf00904284cd8ed244158f30b3de9a0b0ab979acd32be. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:17:47Z), 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/NL7CJ2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa814ff7c6437e089b2c0b14468ad4f428a3f15c86d36efe528e10d307d7ddc3. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:22:20Z), 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/NL7CJ2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3cbe97aaafe615a7662a497f9d3451ebae73310ef6207766753686a08fe93c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NL7CJ2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa814ff7c6437e089b2c0b14468ad4f428a3f15c86d36efe528e10d307d7ddc3. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/NL7CJ2400002.
De Dûns Fan De Keallepoaten (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5341076134591a52ac5cf00904284cd8ed244158f30b3de9a0b0ab979acd32be. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T18:06:26Z), 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/NL7CJ2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503f798bf56e41f1d1532c64ddf8e6d4d9de2bd40a5664ee9351b3ae0b80a321. 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/NL7CJ2500003.