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 0xf20cdf0795b91b6bdd9a73c5634354378b1424b47e69b7139a3a3f20bb6d9ccb. 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/b818562c-080a-4d92-bcdb-9f6528b042cf.json and https://artists.proofprofile.net/proofs/artist/b818562c-080a-4d92-bcdb-9f6528b042cf.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 0xd626cb4068e6bf0bd5d77bf61d5a1502c82a9a87b8ff4ed9be1320ed0eec2a1d. 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/CYA112000323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb020e848f929d3b90358f456cf67c5b88003bb668a11d8f8792878e5c279f3f2. 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/CYA112000292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a53125bafac9caee7ab768ab364bc278ccfed326257bb2c035c6d83f9a6eee. 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/NLZ541901358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf42140825980f4630970d76874b2bb78e7da9e601831e02e91755f80edede4c. 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/NLZ541900632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a7b78bcd8c288abff6ac19f6a33c1d1552a06c69a87b4ea5514452ac5089eb. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/NLZ541900153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91af31d91415ceff3806b2959063ea4a2dfe5c0249e9238729c0287b7633f500. 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/TCAEA1965342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416934e5bfcb24e90558c51ca4c8fb1f98f3494eeb4e425bbe68436bdeb43d2a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLZ541801052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63fdcd3bd7790977e0508dc057977726659a4a2edc980a128b39841a332d7ae. 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/NLZ541801054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa034a1f039f24b729c9c8eb20d43745277e61b4d85009dfa4b04db228b5486b. 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/USDM31804001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f5fc3d5f24432e462a84069e3bafaa5a92be8644b5552e497e1cee66a3c464. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CYA111800162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988bd4f1fdcacf2b6d30208fb9f76ec50407605ff96fe83f44e8bdb8a4f0ce66. 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/NLQ8D1700467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6693aeae01940c64331b7dfe996785409ea915b29d4892fc39917ef1e3c2cb72. 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/CYA111800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88f43cd4d0afd6ec1ea9265d9294a8a5bf5779d7a6365c0bfe4c51dbfb5f512. 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/NLUW21700594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46931b20e5a4622b6992e066e1f712d3ab86ff8967479486f375c5e2c481a81. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLUW21700588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43afb7f8cbd0437f19b64b024b0cd1fc3f52075109b50d20b26b9ef1d7d091af. 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/NLQ8D1700218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb174f6420c7ed81335b90876a495b2b5f9f4db1778a047634ebe421943cb14a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCADC1733235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6340ea5b3dfabb4bd227c80dc11124782f0db91d2e290910d252ed90bc4e5703. 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/NLQ8D1700043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106fdbcf75b81cb7a97f6425173d8007e05e2c6d9d354124e8a6dad042858de8. 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/NLZ541600177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4c6ac60f36fdad8b6d199e29331741ec50829a1387a954c2214e92781b6b49. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/CYA221500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d9aaa048f3175564cc5e231a454ade2cbbd4f647b7c3eb966a15de030b23a2. 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/USUS11202822.
Revealed Recordings presents Miami Day & Night Sampler 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6340ea5b3dfabb4bd227c80dc11124782f0db91d2e290910d252ed90bc4e5703. 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/NLQ8D1700043.