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 0x305f401e9d317af4d059b1611ef0b0a05868d54d19dae4726f3ce297f64aae52. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7a70a8b-eb3d-44b4-affd-5cc2ae895727.json and https://artists.proofprofile.net/proofs/artist/a7a70a8b-eb3d-44b4-affd-5cc2ae895727.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nani Ki Kahaniya : Sindbad Adventure Stories for Kids
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 0xbbccb4112788e023d359484d2c6679e75d2e3f95b059973967617fe6c46158be. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/INS171902654.
Nani Ki Kahaniya: Moral Stories for Kids
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e1ffe0307185f73a84d28565abd0411643bca2dd4d09260d95f2a88bec6651. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/INS171902925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6813bce12157587aec0503a9b08ceac085f83acb5ff61da32fc51e17b6b32d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:31:23Z), 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/INS171902926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c36cd8ea9fe2f585b81b96cacf940dae5cc4f9086031518891e439e6c0da756. 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/INS171902918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b624df9e4539797760dbed67d9c10dfdd31521b4e2e1fa278922dc5d6e03de. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/INS171902919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1e446e6d0ba71cb2827eddf2d1be56e011615d4d0234b20378fe8515b7b183. 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/INS171902921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe283784fc78632496ba510cfcbd325029ecd208ee0cf36844bc104ccec4affb1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/INS171902922.
Nani Ki Kahaniya: Fantasy Stories for Kids
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b4c212f4e5ac1447950e704b4d3c6a9eaaf0ac4b7e2ea56e027205b3682b82. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/INS171902975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2747692dcf881ca5c64fb7419db9dd386b948e38b2c73fd386f4f14d528da483. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/INS171902978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25af56657a6d86c859742f594571f0d9259f046498a5a8109b288fb7b350ca84. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/INS171902962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f32ac4de8241d689d48f36fe3a62416588a1da717ac92dd33b4cff319c6cec2. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:17:49Z), 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/INS171902963.
Nani Ki Kahaniya: Popular Stories for Kids
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7232ec5abf12d35878cb646325d5b0e54926dc2cfe89ca73040122bfa7eb60. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/INS171902934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf324054a00a01607428d929f18611eda0a78ca28dd6b91d268e6add5da09df80. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:01:39Z), 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/INS171903021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b4c212f4e5ac1447950e704b4d3c6a9eaaf0ac4b7e2ea56e027205b3682b82. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/INS171902975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25af56657a6d86c859742f594571f0d9259f046498a5a8109b288fb7b350ca84. 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/INS171902962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fdcdfb048d8a8a988316fc1f7eb5006be06c4f01b10187aed2ca642baf6f21. 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/INS171902980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e91cab92a8e4b56f725d724e9fc97e4e38e5f9bb6abbd8d378cdc9d1d32c2d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/INS171902982.