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 0x8a635e4fc680627ee110f23b893c619d8a15323077eed0ce2fbd5c6d6272f137. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bca4f2b7-b730-4d93-bce3-87406e1de8cc.json and https://artists.proofprofile.net/proofs/artist/bca4f2b7-b730-4d93-bce3-87406e1de8cc.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 0x8d760cc0d74a771d2a3107c994d689c5731dfbc085aab9f977558fea6e03958a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BR9Z22100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22da830634cc5d2d3c41241e5147bb6ac43b4deb3654adaa032703bd428560a4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BR9Z22100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb27e89ef9a2e4e03dcf45dafa644ea8341ffca2310cb6452657f79638f8d52f. 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/BR9Z22100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9517bfbb1968a147df96f3cfc2699297cbc11f2ac5b896a350ff2444d0565c0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR9Z22100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3fa134345e5d1463f2c07e9966cc88bc7d111563b9e6474aad6cff94303c34. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BR9Z22100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63616eedd870765bf38ba8e9e09549538af718d2339f03e97b4f6f06302af853. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR9Z22100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbaa3381da7096915218f6b6d70f131357608b5115f92779d881b953515f1a1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR9Z22000133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23afc25f909a6881db1ad96731d457c6439ccbef53937f60fb95b8d0db1dd532. 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/BR9Z22100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7cb0c4a58913a5fc84bd3d6369cb6fc882dbfc71985019b390c58433214f87f. 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/BR9Z22100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1dbfe5bcca2562c9a553a1c912c5de30236cb2a9b4fe58aac31b0c0ec27edc0. 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/BR9Z22100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971117533f7dbcc7a088f582ef52971c241c2238e4b8a5b69c49e49caadb8e65. 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/BR9Z22100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f122576539ddd68ffd735953b66556388212a6b596f530eed7e6ab6116a9ae. 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/BR9Z22100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581ec631795fd9e777add31f71ce3a80dcd4e372fbb9f10a05a6ef01ce8166d6. 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/BR9Z22100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfe9beb404681e609fa8f07908f7ed6a4548ea868a2ce3015834f3f09ef265d. 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/BR9Z22100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2ef99aded1b3313f9edcb5ca507445375d86176c00e87f44ff0ac9d7ed6e9f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BR9Z22100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016dff471170ad4954328c1512baec6874388963f251f29bdbf0e5e938b33110. 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/BR9Z22100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35b0d7540ef975ff83b13ab34e9558c75219eef8cd9868b8f1d24a667f07f06. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BR9Z22100045.
Ela quebrou meu coração mas esqueceu que eu faço plug
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc461995bc800b2f7b844ceea9d30020a546f5ded90cd541f080fcf44454a61. 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/QZK6F2240354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20dcda6e1c7056ef91d133eb94079089b3139de49908009d81d972793aff247d. 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/QZK6F2240355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6800ec7b3ac8a1b1f204062a7ae9f1924297a1434d01682ed3a6707c75ef5008. 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/QZK6F2240356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ef7a30452310e11a1fad75f19c3e58693f58d81d3c8da5dec1e4ea195dea51. 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/QZK6F2240357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78599894c7ca6aac8067980b14f763b4534094757e7c7e7fd6add47c45f866f6. 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/QZK6F2240358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71abecce1b1454a2947f50894338ab924fb8c3f51eccf235b64aa53ba6f6fc37. 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/QZK6F2240359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b7ead5116a15744e4d133ff68158d43674f4063bf43248a61f21d2573bfb8b. 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/QZK6F2240360.
pq essa garota insiste em quebrar meu coração
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bdd2ffc9d66307912017975a9e6206f8d45077ee6bc903cc8831c3c59e9913. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTB92452738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1a1a216ffcd7f378f758634e39b935ec0bc992c6ba31d5ac9efc71edf6b762. 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/QZTB92452739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb190d971534578ca775a4485d6c1dcf5bb943caf999f9fbf460c0649dec35bf2. 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/QZTB92452740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8be649439c40f11cb853b0fb5dfe320fb43f339079ed33bcc098f4b1a08c78. 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/QZTB92452741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938312eec468a149972f6dfdc5942a2ebf57b55fa8e5758d6eb5ea85cb12430e. 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/QZTB92452742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0c4d3b77cef156ddd611b8eff04bccc0ec5cd55cd57d077485bb354d1c42ef. 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/QZTB92452743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee55c4bcf074d792f68ce3606ec793a604de5405576996b87dea140c01320e35. 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/QZTB92452744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4a916218a56778787e41141719b1f676592f1e7d488cbd08ef02e922a1714c. 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/QZTB92452745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0eb8bbb53daf990cde64fbb803241f10f13062b4386df70c7cf9ebd8a82df2. 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/QZTB92452746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccb717d3563564cb9569308fcd21deb0a51953bbd0ddbb21ed7702ba6050b41. 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/QZTB92452747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bbe44ab69a1595d55f1fd7983dc2e41cde27efc01f903ac9d45fac8efbfd1b. 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/QZNJV2053079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be2842df767932ef2f0d4a4ceed5b782b4996cb00ba614ebc089554f57bc33f. 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/QZTRX2475774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78d917d03a85a39c68b86386acabafa318a14e9b64021a3530e02a879020ef0. 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/QZZ8A2474192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60932e2cca272a88458bc06d4bb39a347281d95b41dcad3690d0dda0e330dfd. 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/QZZ8B2412595.