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 0x24e762907de96c4d03d682698d0d122bcb2b15e0a194a4841c0779d439cd697a. 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/e9761882-aba4-4dac-a5ac-671e33bb1397.json and https://artists.proofprofile.net/proofs/artist/e9761882-aba4-4dac-a5ac-671e33bb1397.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 0x394f872e8dd1f48a38be0fc4d931f227a800fe19109491a70cbe6160fd33e123. 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/DEH742217999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5995592bb6a914d2f654960e0a90cb736dc14f6bc7e2ccc84b005a3df34b870f. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:31:44Z), 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/DEBW21900122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65014c9bf8738725457e127aca83dfa6508dbb9f72ac4d5f6288e1ada94777a4. 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/DEBW21800179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c65028176b20248602c4fbc6bb8f0781a51adda8a32df5f60c56edad691f1cd. 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/DEH742050478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc48d9ee22018cca02135e0357999a17320cc130f3f4717ca64ac1432ab3a8a. 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/DEH742050484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86c784860dd1bb90ad7c61dea8af3707d37c9e8cc040adf72276d1ed4213434. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEBW21600168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38a269ed2dcce0b31656f2dcfa047ca841d4980cad97de1e5300d3199c2b4b5. 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/NLD682302313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62391973677abdaf9a2353621840bcfe4bd08342227bd9b6f802986203ba55d9. 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/DEH742315337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9563fbc6a32b90ea8b9150f84a06d5fa98a09f36858610d9ef0916e21aba27ad. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:51:09Z), 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/DEH742312092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b95ae02bc8b3968411877f5563e182d88645e6bac6f435d9d3b99d9f82f4453. 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/DEH742305328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcaa266cf9dd85e88e0d9ef78beaff3c83fdf81b379401c4458f0599dcbdc2c. 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/NLD682300668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b40b208b8679e6d6e95af5a6892bb39a64d489e1aa9e06446dfb5e99586f10. 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/NLD682300669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278eb6348a00b128a5e766cf1ae857512a5be104a19e8e20e5324846ba49e3f3. 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/DEBW22300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444d9b1578ca35605aae6191dd6d427aef509b5744291f79d3e4641454da5d55. 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/DEBW22300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30f15713ee6a69c63b50118a8f9c6e692bb2a78e6a6e43d517a53e1a9adb486. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEH742228539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdb2395c2dd0687aa45e4490ec9d6efa1584f709773e5e3d7267147a3036cfb. 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/DEH742173706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c93ca5fbd799b28d575bc47595a0f9f9e2a0a03ad89306bcce3c49e64ad72fd. 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/DEU672101717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87feb61ecc760cc8c67493fe5fa063ca39cce142f9164587b7d287aec1d51312. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CH3132115979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa673d3f06bd56aaf2e4aa592562d3f419ef27e727dcf2c974fec88b51cb1cc9f. 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/DEH742164364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a7681798b24e401ccc89964ad2d0632f37f7896040c5f9f30201f50b7a0bdc. 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/DEH742154260.
Pulling Nets (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b20841ebcdd4779157d0c232648e5f6e7b666f87bebfa92375c1718fcf63c0. 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/GBKQU2402303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc122f3321b23568f7553437cb54f5a403049b3217846e339202e583d741a55d0. 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/GBKQU2402304.