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 0x6d07fe209656155fd0fda06aa2cd068b6ed358d023f765665cadba9dc8ccd7ea. 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/bc048044-e608-4117-be96-baf72fe6dcc9.json and https://artists.proofprofile.net/proofs/artist/bc048044-e608-4117-be96-baf72fe6dcc9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sally's Song (From "The Nightmare Before Christmas")
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 0x2349e306c312fa0c5c01fdb8f7831385a075ee3b163454a167563323ee444d6e. 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/QZ22B1864384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892aece7a2cc4f89d9158188dfc9d69ad2a0249bec6a284807617b5077ce6162. 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/QZ22B1938416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58630b6a93da9aa3534d45f8e8a32f31ac3dac0ae3fd007ca8900b5cdefddec2. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZ22B1938417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3402d9342852c3311ba2ccbdf46d5c19c15603da2aba48ccb70635d22668a2a. 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/QZ22B1938420.
Where She Sleeps ("Before He Cheats" Parody)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805185a9a26d457c0b257ef64475e6059abd9f8704b95c5c827b5deca7175ba2. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZ22B2078226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedc4560598649518f9bb54bdffdf4da04d97a11bb966294b32fd5cad366d7c1. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZGWW2034307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf275cec2ceb674641eae962ffc4079f29940eff6d5b2e4584e410b4661643e40. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZGWW2108756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb636d6afe8d05acfd5b4e06c378863b91fa04d6521d1a50234e06272eb530b0b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZGWX2077229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1953f68700b7d0a90232257eaf81dcba203efe8eaded13b31d629270941c82. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZGWX2117822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819898fffd1b1814155c22e750f280319bc2db01ec8c69024bccb03264c73cd6. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:22:30Z), 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/QZGWW2134564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9cee4f90ab96a404add0718f9b319540813f1edc93f414445bf37c46944b1c. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZGWX2249032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f30a5c3e2ef1501c1aa6c1498f0e862a6cc3bc815d85245bec5f83319fa479. 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/QZGWX2249033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a273f28da5ecaf7da02488905258bf432ec3e478be25ba338cf3fd559518daf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZPJ32113242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68340ebe72cf5a28d30fc55ad238e7054a2b7115885db3fb8384e6e3250b733. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:32:51Z), 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/QZPJ32199844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7417ed2f9e11d07bffd8f31b6dfaa416b69d07e9102bafdac458cf3474d49f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPJ32218124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2eac7c0a9d752e652825833e60f9c952a84e9c99e03d54a31f3de9c7c017937. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZPJ32308666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0732a61b7f8e3aa7b8ef4ff212fbfc17a29dbf4e1251f057bb0fa2beadbe8428. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZPJ32404863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af62fa9538c241ee1b7b8bcfad1491c7858d5604ed631b03a6ba82ed2efcf2c. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/QZMEP2550570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12fc79a35122e2a1aa4de8c50e0645e31a023bdb8930a37e9032128264436e2. 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/QZMEP2550571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793516eb95b3f79637817ccfd6fc82fd913160aebc936a586ab5a7b63f529191. 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/QZMEP2550572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c5d76d539e05e08840ac4bc1ca8dd4fed61ec20b2d2b6c4479b41d4ee42782. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZMEP2550573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde761eefbe4e07a3ecd4fd745ddeb925f25f862345e609fcbdf2c0f30743731. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZMEP2550574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc850ecf63645e9af982ce1812d8f0dcf46ee33981dba4b66824a3e7f973a5bd3. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:07:34Z), 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/QZMEP2550575.