1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd95d7ad4aaf41e6bae13572c6240cda5885dd74710c4aa0b611e31f3b1739b3b. 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/e5a3d40d-ccc6-4108-a519-8a32d5c24fad.json and https://artists.proofprofile.net/proofs/artist/e5a3d40d-ccc6-4108-a519-8a32d5c24fad.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 → block OTSBitcoinBlock must exist at that height 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 0xf6e01158ea442a505152e6cc7750493e18b7a77e695494076bc04b1d2664950c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BR4TF2200115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64995b8ddcf5abf33c67ef95158f82770a1d578d8fc32b9064408573c1d47148. 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/BR4TF2200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a6e547460d3f7559f050f38ea611d286b686e3aa12215ddff081aca77ef095. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BX44O2200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3795c6e21f4a66569710c13b84f12d1ae941ddf8b89280799bfe228e9dcd8842. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BR4TF2100626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9defe79a1206e03b819d3242b4e173844f6b0ad80ed865f7b9b0850af333230. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BR4TF2100974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752c1e87030e92a5b00a8642d1a4de7bece170a9ba865d6cdc0dd55058989862. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BX44O2200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb2cb33b6fb3256a1c18731c1f152a488cab316a22f473bedd6199d209017d6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BR4TF2100975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ff5a36e3d32ce27d018359b2469fad350e1fa69a349dc138e89f2a15ed8a7d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BX44O2201432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3faf8174fc7dc1de9aa35c52357e1d0c67ecbd2f4eef7e468091d16d744594. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BR4TF2000124.
Todah Music 10 Anos, Ao Vivo: Vigília o Bom Samaritano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43dd71e5533457e9bfa418f01d2702ff9e983e71a3172749eac2b359688002d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BX4402201687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de3c591b66dea6b775ac4e07f2a19e6874864beb619065fd9e930c6cf64c02c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BX44O2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7813281f5c288301de05fd48dd3524750fc93d8d60121a5aa004692f4dd87c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BX44O2301260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91199e3665c6822e1337d7a342b401fe2bec345fdfe0aad8b9bbbf44663155a9. 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/BR4TF2300899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b549681641a6165b4d1d88a7d4648d8c4d1b1ae54b5d33c9c246123ac4109e4. 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/BX44O2202197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e163eaa1e6b3e9aaea687b0eb403da528805c1c1ad61ec1ddce39200210a46. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BR4TF2100686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3621ea5b69d1adc5f46144ac939e2e845aac0a9c80a5e2a69eb482092b9bc0a. 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/BR4TF2100646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b01f36de8007502066ebb707d78821d4da088f4af4e2e99a849ae3b17411b3. 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/BR4TF2200713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65cb20624c86e31d0906e8d36d256b0336a3d3720043ea3de1c87bf3dcbb190. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BX4402201674.