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 0x7e715c92fd54e9aa4155987c79897ee312e5c73d3d8ed91f48cd55e726b09b9e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea6cbfe0-8e16-4856-9998-adeae9fb110b.json and https://artists.proofprofile.net/proofs/artist/ea6cbfe0-8e16-4856-9998-adeae9fb110b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865b100fad83c4288b65851c05b1db7fbea4db85d055b3368cf3eba0288ab8df. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX202209752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb920dbe2cae26fef237762cbe1d8d39767bdd69d61a6321251b6cf26d08888b2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRX202209753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663059a1b15ec6b10648ef53fd86092d961f154ed7fd9e6484251c0b2971966c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRX202209754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d45eb7cdda4fe156d3a7885772786bac56b1005e73e66fcaa49b9dc20498e3c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRX202209755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa0ed55763756b7dea046327128fee07ac841b7921fb2cd8a50348f623cd295. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FRX202209758.
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 0xe34d6ad1ce4a94ad6a3003106d509f895ccca9a0ab9f74975b58ea11a12dd630. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/FR59R1945364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f83539ecebddac6e9373ce4ebe357d7738b72abc9acdec21cb8169cb111870f. 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/FR59R1945367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e55d79300ef7c9e1426689720711b7f5c0323ae807089d33403e400cdaf703. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FR59R1945363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb725a238931552601780d23334e01fee9c2e62ea0b5a4ac97c29a1f7995b6a50. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FR59R1945365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcfc8d1f83c273b2d359d937a71aadfbf2f581a2e9be26d2ee43e22385bcc24. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FR59R1945368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60aa187e3fef050dce88ac7acb1529850fdb7ec5935579d2914ef88f4672a2dc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S1850490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fd65ddbca8e0c9ae7ef1039e0a1d5f3ea87855aa80b9e767b305da9b2472f6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S1850491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40b2499d248594a4d0d3d4f2a497a4441b7c94873230ac23e29ff6e8e0c0e1e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S1850495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb156efc281091878fb3d5dbed97c0794036f5317a003262a4275c9895545d5f4. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/FR10S1850493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8dfa4bd14e8a4c313bfc63b7843522c2fd9182ce54df43f8381064424783961. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR10S1850494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f239ab152e96439ca63389381cf91eeb44d8e7393cf3bed7ffe7bba41de4c3. 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/INT1S2400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c5a27b187238cca298b7645dc756293a61f50114b36c7bd3c702eda8fc7c38. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/INT1S2300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06b2860925beda10bb2752d32794c7e25048effb85476a7b23c8e5941dbf6c1. 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/INT1S2300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75714f94dd93de8a7e77ae4b079e9c3b4b58c334fe2d95da774b63f97b35975. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR59R2286619.
Best of Hazuri Ragi Sri Darbar Sahib, Vol. 2