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 0x67a76ff62654e83a88f9cdb6f4d1ec28d9c74d8e311aea7e45fae62af83ed864. 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/7240b449-0617-4ddc-bd20-d4ce2785706a.json and https://artists.proofprofile.net/proofs/artist/7240b449-0617-4ddc-bd20-d4ce2785706a.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 0xf1a05e36af79a01d77baee2a1d1555ddad9c9660184b3379533ff65ce29a30be. 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/USJ3V1445730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec252ca485106e258cf2ca7c90932950f9d8c7e8e28c83c49e5fb3c06b13d61. 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/USJ3V1445729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba3d8f24dafcffbc5f54c549f0b45437e3d73e918a817d12247c66d7e5744fe. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USJ3V1445727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8ce3f934ee84fba759416fcf7ee4733a09c2a8736e042752c1326bc8668b8d. 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/USJ3V1445724.
Sons De La Mer: Bruit De La Mer Calmes Pour La Détente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020e9b6a190ee728d307331a85dea323de7be4485d27e5b94a995ea202bbf02b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/PL50G2001243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ff2aebd6930093f68648f0ee134788351934dea997d0e3681518677a9d18a7. 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/PL50G2001245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1249b0411a7b4507f2b5992d36220b39cdfd30e2a8789876dff17a95389071a6. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/PL50G2001246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fb94687a2056be6d7ece8cfc3f30bd696d76e6681bbc5c92b916b03bdbe632. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PL50G2001247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29258d9baf04d0db2c568f56bd1692483eefc5ba63016a4acf8546523effe0a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PL50G2001248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe376a3470343701410b0da234bc57aa64e8e83d0a185cf681ef79b64a209e528. 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/PL50G2001249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76292d21a61c092119235742385e716bbcfc9df3ff422d1aea5561bf314926ac. 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/PL50G2001250.
Sons De La Mer: Sons De La Mer Pour Dormir, Vagues Calmes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb65a7e3b1023f33d54f71da5e6093e71110c537154aa6bee8b9e9347b2ce0d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:17:16Z), 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/PL50G2001307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568f1dfd58745e8c560768ec3932178a3ed8a6bc40a46be5771f39b248abbe5c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PL50G2001308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af3caeba7e2a0f65331f5c27f9a2cf0df639f9a84ed3bc2d6d90014f128a612. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:21:09Z), 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/PL50G2001310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b26a744a954f426355071fb941fd88a95b081eb5a45d494a1a78863ff749b3c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/PL50G2001311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb001dde55a73ac6082ba81200683d5f1d1eb46512863cc8c99e1ff1a6baee5. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/PL50G2001312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5158de2849d6927f9d5481ab145a8d016fb40910b60a8d8d00e43a3f40f4b0. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/PL50G2001313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1e22786742c121d781d4aefb922e574c6807cf9274b5a6b28823d812ae6a90. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/PL50G2001314.
Relaxation: Le bruit de la mer pour dormir
Relaxation et sommeil: le bruit de la mer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aeb0143ec162bb777a6d3966fe6d1181813f39e34a9ba34543ccbc288e3766b. 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/BRIMG2015557.
Océan confortable qui apporte du confort
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8d86a8afb50be079aea74b68136260b42912ccafdfa7d8a28c255f354b8886. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZYXP2356718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f4568640687a88dcfd9e606401186c56f5836ac76c22d1b58dab8a74c72c90. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZYXP2356720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c459f620e82d3cc6e1cca7abfadc8e18e768ab794376ad74b2e7bb2c51a36d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZYXP2356721.
Expérience transcendante de musique zen et sons de la nature
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2e13cfe19019b8d24590e55cbc99f09d0978b31c8b9a3ece16143e0b62ebba. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:19:01Z), 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/USJ3V2408111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e190fde287602a57c1541fb07ff17b7ac32d6a6a25c66556b389b5620b8823. 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/USJ3V2408112.