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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb426111251189a3f67a13fbbf90126fbe2a3d86c4cf6207d4e9cb0749d2a704. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2097a051-1e1c-4540-b60e-6b12aa43e89d.json and https://artists.proofprofile.net/proofs/artist/2097a051-1e1c-4540-b60e-6b12aa43e89d.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a4a71983af0728b30028497ed5e94a1f9ea8443f5a3712ca3226646ff6f945. 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/USA2P1407039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d17a2693063f815bc64db88cddce2f0e57f5dec6094b4dff49ecb065e7b4c1b. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/USA2P1407040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36c4e8c253e85bf2a21e7e854067be11e25d3520acd3b5fb214b9c14ad0b695. 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/USA2P1407044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae592320521fad3c12eddf2ac49a1ed19a2a98179bb6540cb809e5fb40315f2. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USA2P1407045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8ea364b4119a840beddf32a30f5cb9f4ba209adb9998b706807ddbc1dd261f. 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/TCACF1503955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d22b5ce7b76a0daa293097df3abca8bdae12fbd67d8637e5a67bdc8a52814b5. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TCACF1503956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18502390f5c2cec071cbfa23dc3096c473887e190c157878cbcac9dc761dfb2e. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/TCACQ1689543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e44ac64ac9dfe39ebc643eaec0dd7ef520fd0823635b37ac9ba6327b3021415. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/TCACQ1689548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9f6df87da0c373daba3e1c682c334709d65081e9eb114a776184b59a461790. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCACQ1689656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a420e1441a868aae35d783ffa7501011f939e772d20fa5d6189657f2fa308ad. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBKQU1820254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf46b8a0f62ca806c04e50b52a7b44eb53de6ca947fbe4b8472c8977d57e845. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/TCADZ1834367.
And Every Once in a While I'd Sing a Song for You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d23e5d07250c8f7ebb9202c6dc79640aaef9ebe5c0fab5437c1fac599a8d44. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/TCAFW2139951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc84a2fbff176348a3f8b9886c20d2e3c85c1cffd3634703d6f1064a55ae919. 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/TCAFW2139955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c958387a3cb3bd9dc69ec7d83d9644768f33a008499be54acec66958ee39dea. 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/GBKQU2305922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528264b42b2cbcb13f8c7fafc65c7f3a11993354574dc48a6764217a52a2f731. 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/GBKQU2305923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc1d1546755daf15f4e66e92ffc7d6ffc19796cb76e2f603b8eae8bfad6bf6c. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/GBKQU2305924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dde8f5fc98b9000dce9c8da91e720d3944a3d89f909cbc6d29b3cdd6fae2cca. 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/GBKQU2305925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bb308a10a30e6e5f2cf96bf0bfc243d1200a9fa3bf40c0a27f78d12ad34619. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKQU2305926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b96592d7937029544657f254d54a5c3eb59e6401b162cec7110fd9fc9771a1. 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/GBKQU2305927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729c359fb6fb8cca180971dd3771b148ff537637a119201d106dc8bab6540c4e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBKQU2305928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd7ba5568f2c94a1933b1cd2c0f6e171b3f0373752c20c4f4ee6ed9e20245e5. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBKQU2305929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae42a026a86424633a397c59e776a485c363bcaa5aa94abfa7e98a83280f4610. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/GBKQU2305930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14330c0dce078ecee0709d986ffa2824aea87a3a58117a9c8f982b050fbba2c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLV62017895.
Psychedelic Dub Masters (40 Top Psybient, Psy Chill, Downtempo, Glitch Hop, Groove Anthems 2013)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26659504f5115b140a4ecffe9a0bee2d325db9d4a789857dd0bda26d2373b6eb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USLZJ1396526.