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 0x08546d3c7ad08f258cdd26fc84a89bb781707d459b96f74a07c3b2e5d0b482fc. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cbd2eba-b799-4335-8261-193e7ed1d728.json and https://artists.proofprofile.net/proofs/artist/9cbd2eba-b799-4335-8261-193e7ed1d728.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 0xff6a7416b9d5a6556e695cbec3d42dc7a0d3a2b9dbe86edbf1085803a8bfc89a. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/JPY200902138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1e7326c4af6eb088097ef6e9dd6f4d6ff4eac3c1875b62d35a0ca4f13e09d1. 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/JPY200902142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8902352c93de022bbceba6106439a5114cea48d247b5cb94dab9f2101f55dc. 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/JPY200902145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c82a23af5df00ce6921a2486f075e37cb610ad4497579890bdf9aab5a42767. 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/JPY200902148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5f6f1d4decac551751c03c8aea9911832c7396806fa3fb3bbe7f6299719caf. 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/JPY200902149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280d20a72f10bd5ffe9df7dd26cfdd80f1af1ec8a28e9c3a74d112e5d8ed0863. 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/USUS10500418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c167dcbbca868d667362fd291a305c052428ccab97e5ad2d7dd2f9c5bdb331. 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/USUS10500419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904f4456deecef08315732c6f56488287e1451814c230905f4cb0ad92132b582. 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/USUS10500420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392e4795130c5ac4af53fb7382684372095e01eee79b191b17478784c5e84864. 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/USUS10500421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246f061002d5d44d28f746f5704eb0a109ddf6ae30a61588d22a3a1db072aef6. 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/USUS10500423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7531006848e6c80b9542103bf176e9bd6a166a9486d5b4d06eba0674777e2d. 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/USUS10500426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2d239b27abc8031dab2990292c6ffa7ef3e133f048d490ad4e98f38314ee80. 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/USUS10500428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1247e42818da036bdff82d2964c550264e674ab70e6109e38ab86046c7d6e86. 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/USUS10500431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318289822a53aec53247bdabdf3e0f245eafe8d0c910dd42a0e9589496378f9f. 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/USUS10500432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fb96ab024c6dda8a24cd2933c325ed83ce19c3684edd630bec32eafbd1225a. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USUS10500422.
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 0x13811e24c2afe209836889eb68d47d8e36b23b94f794cfacb704e2acda252df5. 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/USUS10500424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6cf892b0e3e319fcc9b5da2bd4f81d484951fdf39050997fca31d5dacef5aa. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USUS10500425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147d0d955ec223469a2cbe83b0d497b93d7765efb63f73c3af38d85c81fa4778. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USUS10500427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a6ced74e287f45fcbc13316fb1f6b12b044b3e25ec113cee4ec9e72ce4fa4b. 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/USUS10500429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a496fdbe06730860b7ec47f0967aff23c3956698328a02251550f3b409422d. 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/USUS10500430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77af581da823a3fb8514175411b3077ca48041b29d4775bff9075f0554c333cf. 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/USUS10500433.
Give a Little - Trentemoller Re-Adjustment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba793bceaaaa87670b1c4f51805d34f27806454677366b033ee599604d3582fd. 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/US33Q0400272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf208bbd5b704aafc71a3b579bcfc509bf4bb4b643f728eae1e72c83dbe78819. 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/US33Q0400273.