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 0x0ace2fb7c7ac653d9e9caa0995001dd1bba1ea00b1c35672d82d702e515f2206. 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/e55c4e0d-abc4-4ec0-8d7b-bbbc16a3c8eb.json and https://artists.proofprofile.net/proofs/artist/e55c4e0d-abc4-4ec0-8d7b-bbbc16a3c8eb.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 0x5432cccc70ea2408052d6d4b4c1a60c790521fff112ee1535436d9086f3cdcb7. 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/QMF9Q2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f22db3042c75126db2c7f53b0ec3c33eacc3ac7e7005e6ef2cd70e7d8e5509. 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/QMF9Q2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebd3de547c548e717f54934fb6bcb90a862a54bb7137a4f141dbb3cdca696b2. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T08:57:28Z), 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/QMF9Q2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3713441f10df62b48f59cf889b7507f7bf378702f78418c3a5c8555bfcee7a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMF9Q2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234a31b6dec0102ff36bea91830bc05455d5d5c7752974033eb642e533f1cf2d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMF9Q2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e98552f9de036d18db98568f2415203340fbe11dbe7fd19dab3626c8919bf0. 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/QMF9Q2100009.
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 0x63fc5850fe9938d116296c3313e524a4a16c56e28de1b1ef804c8e28e1d6098c. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QMF9Q2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f44dc968630e25d00305d211e8d01fcf5c58d17a7fbf154293f1654dd42be2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QMF9Q2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdee4a0fe0fb9902ce17f45b708af3b912453c67c4b24559b51b6a1ec9cf90c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QMF9Q2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34677472c8a100997e5574c984d4969d301ba1bbe1f82afbd0fdf8a46608262b. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QMF9Q2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fefd3c2640794a77f6ebe9a55f8684cdce28a61ad065a136378b8335e68bdf. 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/QMFME1971684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db42576b13c41e345b5462a9b40c80c12c28f4e5da381757eea771fdcf99ddb. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T22:57:28Z), 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/QMFME1971685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a2d7cad1316e7f08baa11ae53ce1dab15a06f9404e2004b5b6bb452ac53899. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFME1971686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ad716d049f1fd8197d200dfbca882d0a2d0a16b6b639d16726df6c81c1dc49. 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/QMFME1971687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e8ab72de4c6f74a8911ae5e4d56c18626471906cf05c8e4a22e4d845b87963. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QMFME1971689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959b8d44c4374312d4f8aae1ffffc402db7901ba4e1ec8cd8f8b1e63020708c5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFME1971690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64b6e5c46508f6d43c2b7d89632441c0127c15af52c3b5404937f4bd8625905. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QMFME1971688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4519b3dac850b5d1e541cb79039a6ae1a5d2409124a8b7694e07c7a196d4f35. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/QMFME1971692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a83f24390b77ea520b2d6f44751efb420026d75ec103fcb354b94c401fffa3. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/QMFME1971693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3693f945e732492ef0265e146117f06edb0bfdc5c69d9efe6ccc9c141f62b5. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T17:34:04Z), 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/QM9AA1713690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc93e438e8a5a0ed5bb542fa235e20ee86ba214f6e4a88e55261ed4c4c08021d. 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/QM9AA1713691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef92c789ec1f3659960589f9b69079b5f09c6abf0fbee5d038a900e11aab9c18. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM9AA1713692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6908b2401f00c7783a88e01381b225c4c473b8eddd9a1f9bf48decdbbdb69840. 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/QM9AA1713693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8711f090117bb59f3bf1170925de760b597f37e8449fd3497125607106ac232b. 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/QM9AA1713694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8835c74c4c919ae58242001cf2a92cb12bf3163217b55d6960a531cd41faab5b. 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/QM9AA1713695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba69414b0a85c740e6fbc5ebf17c1244a5ace142c2935a0e75432f9c8d1bf88. 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/QM9AA1713697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2558ee676ada1d8ddb3c7fb4940220201832cb9b638bb608f22dbbe7ba3009. 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/QM9AA1713699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844a987f07668348a0f6f5d72c1955f38325d19309b0ec142769f936dba2892a. 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/QMEU32400542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9babb41609d3f122fba17e19471701e300f9ae8fec1df3c0d429b7f35767c700. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMQYH1400035.
Trade All the Lights (feat. Lydia Loveless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ceda7f02deb1789dda712d277a792428787332ac7bbbadb9dd70ea46ed1c343. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMQYH1400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07b8408b76388c1f0df6c3d1bcda40e9f8c807957b00e4f0df44b56cc4b12fd. 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/QMQYH1400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b43cf55983700a77bcdad91dddf3e30935d8002cc29af1200ff606257834e7. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QMQYH1400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bd40b5f65b62874c844b98029316c1b725b44862aeb99a6d04f06cf4cc35ed. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QMQYH1400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437bfcd9c856ca225cac43187073e4d2f6a259d012131c0f079740c1c7f7f550. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMQYH1400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda40e2538df81df854230a3dbbc28b79cf876166af8c5b7db8b627d832c16f94. Chain 2 (Bitcoin): anchored in block 960230 (2026-07-30T08:32:18Z), 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/QMQYH1400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83215725aa7ef3fdab3164b32e6503e2aeb7cfbd2c53d02eea6311bb292bd8f2. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QMQYH1400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc0f5d02c2611cb88661866b39dc1e2d598fc4724b608a8ce1a13a6970ccc0b. 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/QMVYL2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073867b39cb59b02edf23e5ca105944f0eb3458fefde9e04c222bbdb595c9814. 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/QMEU32400540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb09413617776824b59ada47aca0c98dfc5ef93c3fe0a8fd9d512b3d4088597. 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/QM4TX2242930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0115467574dfd6454d5ca7ef29493dbb2963462384889f3b435c90274d8dfb6f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM4TX2242917.