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 0x959aaee312983a6909188b05f7fe70b9ce7ef87399e85a06950da2c4a4f9e258. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a10db64b-c370-45b3-b1f7-40bdc9c01505.json and https://artists.proofprofile.net/proofs/artist/a10db64b-c370-45b3-b1f7-40bdc9c01505.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 0x1e8a4a2fad9dde94005dcae8f0e7f7515f02f97f2845d582d9d77071d74a2ff9. 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/TCABL1397302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fff897c5ec00ba04bfe8e3d664d5bf63a9a884dd6a187f7560a43d3ffea583c. Chain 2 (Bitcoin): anchored in block 957625 (2026-07-11T23:15:09Z), 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/US25X1900632.
Interlude: I Got So Much Magic, You Can Have It (feat. Kelly Rowland & Nia Andrews)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b47e182c7024b8f9d039932d92325b26102ccd6ac1ac44741107803003d1c80. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USSM11607818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033d9a3163a2c0e6685a349bcd97eaa09a70a8c13bdf6d30b298e273223be1c7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZQAY2458441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6652b231bfb5b817e978c207579ca84402b2de422a2f87cd72066f6941b7c0. 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/GBEUE1002229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7922be6ca3f647ab2e4ee8b645839d5b29643f2f57ed41952d3d6258889ba95f. 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/GBEQT2100077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0c759763a1f76c7e8ded832a900a35918723aa4f16a14435ff0f8f4bca92ca. 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/DEX261800354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b524e4ca82d74aacb60707ea96a83077b3879572bc5dc35d91c7a93cb04d598. 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/DEX261800355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9360c3ca05d702e157b488bf1903ecbc2bdcea2cb5de317f4c101bf8a4070530. 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/DEX261800359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08eb772506e3b7fcdcd192caed1cf286bcf0693666e1b085669ac46d75f1fe73. 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/NZME01400039.
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 0x40e7ed0195d5baccf4467ec3c31f64c25734e40a271bd051aac8fd182bd445a5. 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/NZME01500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a32f8d9dd6806e94429484db66b9a2b51f9b5a0c4623c821c9473f42123156. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/NZME01500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0b292d819bad428cc844508461002b9701cf1fdde12780f41ec378c0067b52. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GBEUE1002224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ed06c6c0fa3bc697db5173cec1deb90b6770992bdd526eb21524092e222e72. 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/GBEUE1002231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019f82958a2f0794f91a29a18dfc979a508b39baeae2a2db83da7e3b9b448133. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/DEX261800353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404f8b0e627c0b4dd94c23b092b89efb74e4f304bfa846016e4a26069f79e09a. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEX261800356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6600fffe0bf96370dd01a0a6bf71eeaed52138226e9842c2e55674fc74a993d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEX261800358.