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 0xcab5ff72b3e57a48ebd580e2742c1439059f71887162a487ad7e61d0a9736ee1. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/709b69be-4079-4f95-a300-8b563539549f.json and https://artists.proofprofile.net/proofs/artist/709b69be-4079-4f95-a300-8b563539549f.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 0x7de6fd582203dffd74417bbe75cc7aef42c937efd523ffbea933c4c732de988f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZGWW1909880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c09f1332e4c24c98d26471ed6ca9686f26c749466aa41892f1e068d3cf2d83. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZGWW1909881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2972a7aa20475fbd46bf2f11a977004111c82a1d91706fe0fb905b03824ab44c. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/QZGWW1909882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8475d9713a145a0b9eb03ca83650b24f331c26b5db6a8dc9659a8b073729597. 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/QZGWW1909883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd742ddc465d8b3bbd22735ba4771e1936e9378e733e55ec3ca59f9f5a7013dda. 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/QZGWW1909884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f9b0950775af99bd73ddaa4d33544e644ae9f6ee51a713c7c1adaa0b918812. 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/QZGWW1909885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6d36bcef96a09fecb0daee9f5d4950edc061007334bc7caacc7cf001fae819. 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/QZGWW1909886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290ef4dfbd357696a619cc5ca0716174b83d0e0bcd05d43bba28c0f533e85521. 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/QZGWW1909887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdea27d0934b8951598e4926e69fe72515768e6d4ce54e1056a6c624604b84b. 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/QZGWW1909888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8c0d2483265fb818ae38a2304fb7b8500d2541dea3729551142e20583d116f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZGWW1909889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ba697c37d295c34c45370a847d4802d5cfce387710b70755e69ec9569b30bb. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZGWW1909890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa852299d7b0f5f081fc76864e3ed6408edacd8d7b278ea6f28d60ae18c322ba9. 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/QZGWW1909891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89dec8381bfe577e71dca45113e5a7a3005aed3a5cff71ec19939b8013d185a3. 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/QZGWW1909892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3855196a9d7e495e03ecbd1cdc9f22fa70cc6c0c4d0ec04cf5544004321650c2. 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/QZGWW1909893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabce96b1fc3d648d75c6eacfb35377f189fbd8b9ccf841d5d9e89c6eb20b4afe. 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/QZGWW1909894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f2e7bb32cda6750ad15a00c9b44e480246f28ec1d0691775a2ffb2f752a63b. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZGWW1909895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0499ffa4efd73a398e423e6d24bb06ab6a6e210844e2f532e1647c68fa2923. 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/QZGWW1909896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768b95982797a4be697a2d04e2fb5467d6130acf7158250a6257a71e60372821. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZGWW1909897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495698768b9c9e15683138b7af9d46129dab1e829a011773c3545e4dec9e01ae. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZGWW1909898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4b97923a4602222d3edfdc1879c360dda201e91a2c0a5783439c737d080cb3. 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/QZGWW1909899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf156b44d304bfa14ea202ebb2da89406d01c492787b701929faa7ef9c55a5f94. 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/QZGWW1909900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80221d944fc144727274c8546f6f053d49f4a1b728b724060cd3de379774d97c. 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/QZPJ32145532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe97673bf1b5c999ade3709aa58e8244e05e4a99b1a1b9af065d6a33c0eb2973. 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/QZPJ32145551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3242ecd916399dd0c323b84dcabe399328519d446ad226ab642ad584e7c1e65c. 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/QZPJ32145557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb0a9c3d1fe24a1691690083e0aeb8cab329e7c498f0a3a8b5df47265743a1c. 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/QZD292400232.
Dreams in Starlight ("The Starlit Wilds")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b50ab936ec3f4f4ebfefbc8d2ee5c51a65bf7840d116f6dc75204549a89fd41. 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/QZD292400271.