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 0x9a7768795f054d9da89ea2961d50f4a1ff057582851159ba85e1192543d342f5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/235f3955-e96b-42f5-8ee6-bd3954cd3755.json and https://artists.proofprofile.net/proofs/artist/235f3955-e96b-42f5-8ee6-bd3954cd3755.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 0xee8045f93dec9ae9b9032148dc830f154c31007fd0583ce033862195a497c46d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:59:49Z), 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/SEYOK1413565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dee074bd8c5ba29140b987b230f55a97e7abe1181ee5ca8b133ed5f84f60641. 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/SEYOK1413569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fe39be73cb423aaec8de873be7fd3d35f8dc7b7dd4cb32baa93c47b8c19243. 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/SEYOK1413571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea752ccc6eaed890d06d5899548e8224dc3a35f055868993215fe6ef6c1360af. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCACK1588070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7300a74c17126c188ff4d645ba17f12de96684a66a88e69b41a9eaec4134cd. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:38:57Z), 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/TCACK1588072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fcfd9ecc4c4560bcd1f60f78561e1ab60695f3cf354dd5373b06c698150264. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCACK1588074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982cc0e3515e8d4ee0190ed603a2bb5e8b477b9741b050751fb286bdc2daa85d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:58:56Z), 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/TCACK1588076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d213ff34d5dafbf0c736df710027a2fa7d5507b2b644badad0e3b91eb78e40f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCACM1628180.
After the Storm Comes the Peace (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cd29add39d92b994d985adc3a69723e5d95c6cd3a4c9d236616e0751716a37. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/TCAHZ2401975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26764573aa1ef0740d54e86151a2a8bfd333f99d1733e80519d5ad6c8c98ea9d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:29:39Z), 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/TCAHZ2401944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda97992d394b5e1c03a9eb98b33f7e6a7a1b84ae656c227850c8d868087b6de0. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/TCAHZ2401932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ab85f2032c77df959ebe376f6006c18fa126a87714fd7db39ac7b2df73612e. 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/TCAIE2420650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f97c136a54004d2bce78e1c75083c0c5a2dd67f5c46a8a400624aa1187676a7. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/TCAIX2469460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56a1e0b4b3fa0265366a53ed38a9c3cb287867e3b9dea04da1ba5b6ad41fa72. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:24:12Z), 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/TCAIX2469480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3144ccd0dca47dc3869ce5dec24444770f6baf94a2165749624e4f7d1ce920. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAIX2469521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3b9481668f55f1df3c7e1916e185fcdd0783d5c91493f8b57afe0134fbe973. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAIX2469530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3bad11969901392c33cccb8c9a472c79caf8bb00eff4fffd9ddbda7e7b4454. 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/TCAIX2469558.