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 0x8a894dcc40d1942cf1f014983aa1906cba6c6ed4a0cc604acddaa6eb0f86251a. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9763771a-46b6-4207-96f7-04e6a1599b8f.json and https://artists.proofprofile.net/proofs/artist/9763771a-46b6-4207-96f7-04e6a1599b8f.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 0x442e2e8aa3d21d6279d22f4ade408afc77131bda9d9e9e909fcd37f8851b9d9c. 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/US83Z2142292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2326f2355fb192b85c3c4985279258da23cb26b7f47ab272ccad66c925a9dd64. 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/UKACT2031540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ebf14b76e365badf10be9967fee051ca1ea317b30196edbb0da79fd37d1229. 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/UKACT2031541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3b75dd2bc26aa1a7d6dbb224744d222bbb0b6275cce07bdd61b40690475dcb. 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/UKACT2031542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e44f11b16efadbdfd1f5024630ff2fbfe89db8ca54a54477ea177ab802c07c. 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/US83Z2042844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363a5222de6905c39c18df3e80d34a628c2ea9d7eabe145ec6c3590f4536f632. 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/US83Z2042845.
Firestar - Israel Padilla Feat.From Hell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa977bc9eb5f0884c127e1920d1dca1109d4a3f88541456bb18f62658017e6fb6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US83Z2471825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f34e15105dde4b242c936c9a88f378522c384c960e97e74c2624f51f72d4a2. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/US83Z2471826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570c6845a0096c48b4d1bd3e4bbec38233294a6c820364d666f4f9abf29fd42a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/US83Z2471830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf329f0a7c75df56c61d32f14b744b06b1e17ac704255dcc79ab6fd203c12336a. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/US83Z2471832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31074a80839df9dbf120e09a7d89d544b5754a44368844127730e5376c16c04c. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/US83Z2310924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150970c0c0b569ded3a2565d280082ade29fdf1fa3863de0d5feff5b58acf694. 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/US83Z2310925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1e08b2f8e77fc290f9e187b0cd82214722313de17f1c7f222d8550c25c065a. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/US83Z2310927.
Rave to Me - Moo Moonster & Parissior Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a35c6c4413fb14ffb7cbe4453a6cc6daba4f1eeed85457d3d15e419d54338b8. 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/US83Z2310929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bd478850a2fadb65d334174ee82f82705d1eb83c7d52ae62450f5cc2cd71df. 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/US83Z2302359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67b5cdff4ac9a98c03cab9c6a31dd9c06dff586ed9bf41199bb474830e2c03c. 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/US83Z2225046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b00030dda651c1c3f06b80da10597bf21958bd15a3c5a452f6c7366189616a7. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/GBKQU2133658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26f1ab58ee021dba4fd5d0505731b7b106d4f99e2c6cb1813c008c0b8ecf7d3. 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/GBLV61924545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a096415a8303709b27d76fcc4f065178171de075e317e6dd17b7f15573f266c. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBKQU1924772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccb48d20f5dba39d36e44cd6b58e23d2dc25b4c6695d5b79720efe07a26dec0. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/GBLFP1900406.
There's Never Been - George Feely's Laidback Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae926be5d9d7dad1a711c6ce40c44253350dcb81631a622fb639ee965fc650c. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBLFP1900405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fb9bbee081c5a7f6745296f71fa53ddb4aac749e2c3dbf38ab47f41cf1425a. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GBLFP1900422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4ce31315003a7635f84bab4410daa3b1cf990c5044f0fb743115df32966971. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBLFP1900407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459537ccbb646e15bda8f8a331b6e41b286f4a585958c433e73224a37bf1a4aa. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBLFP1900404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba836ac60e35aac4dd83b04d09ac9c706cd8c5b828e3ab559731657aea69908. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/GBLFP1900424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4b04f5031e7f131da360baf7f0fda5cadc51ecc52ecac2bfd7c6cc3a8ed73d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBLFP1900409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ff2c7088d6363bc1e7ad7f27b9cb0251d255bb76e1db2e79cbb5bba4ecf08c. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/CA5KR2310946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989534d7ecc09e6a505e5c148fbbd98e2e5328e534b005c47e1f85a05e8cae97. 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/QMBZ91635672.
Dance to the Groove - Pete Herbert Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ff4f71bc7cd4fb2529ffde72b66baff86e3584309800d4c0fb7b333050ecb9. 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/QMBZ91635674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3acc702f77860679f72bbd1ec677a8e97a2c4cbdd3c53f3829b32df8c9ad43. 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/QM7281745467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96624d20f7c7435b9f73239c35c906e3973c7bdc9591faf50d7788addcb33b66. 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/QM7281745472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c556b276996131f4fe5d591c69021fa3e52f813b0e2068adf0a289ff3441ae. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QM7281745473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5397fc2f2760e26b29be0671630f410d2f097db80a9948c95e1418a7e2f7cf65. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QM7281745476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5e56591b0b119672d99bdd6d5b236f3f5386f22aecfb83546f806e5b3fee62. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM7281745487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11f76d6fe4e25c35ae66ce65a6b983476c1643111031afdc8269320ae8d9011. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/US83Z2499455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cfbf1b62dfe990d490d87483465350f2cebdba447133a1d3404bd7f251e915. 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/US83Z2499452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2326f476b41bbf3e505f236b592c7e1924c228c7189aa00b308e8453b8244d. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/US83Z2477226.