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 0x54498501d096601abba7bae874d81ce989006fa0924b4a4db0a8809d935c3476. 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/4c85296b-9efe-4a3f-917c-4b03522a27eb.json and https://artists.proofprofile.net/proofs/artist/4c85296b-9efe-4a3f-917c-4b03522a27eb.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 0xf340afd406ead8eae5a39ddefd91481ad674fc53308b3092dfbe67471abc6cba. 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/INH102413241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0a626d17153cf7a22ac4fe76ca60271fda36924686d3709af5d7f6434ed6ad. 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/INM812200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e5fa2cc6906085b4dcdd85465e46fdb37f2192fae002048725b4812576e761. 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/INM812200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56babf04f1e6cc3a5189c7f7118cbeb4aeddbd94cef80d218b6d313d8363ebca. 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/INM812200115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709cea17d641e67bde6d67b79728cf2fbfb8987a3cce483c32361ec2cd0ff1ef. 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/INM812200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8379bf8547f49aa6df32b64251113a3c7a89429ede7b00cde72991e9659bae. 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/INM812200126.
Thoottikkanoda Patha - From "Thallumaala"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a3c321cce2659f44237ccb3326728274b56aecc1c85fa153f4663ec641ea64. 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/INM812200128.
Sulaikha Manzil (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d39b74f083d738742be31b68717fd663240c1ea0b2c82d57c8ec09ed5e4af2. 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/INT202303529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4f2e124f4020232466ded4a0d3622fe06dcb2e6b9161386ca18460c2d74e52. 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/INT202303478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1368086c537f9642c99a3a90bc99107417e0aa93a35e6772f15b2f44f4ac2442. 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/INT202303569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463e087115dea26b73734253c2252c98378f6e8b26ceeff6e3c8787cdef1bfed. 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/INT202303561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf273cab9e4e79dee1fa3e53977ae36cb23c3863a1b16c85ac4a46debe4edd11b. 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/INT202303570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4ac7913cff8560c6d73544a970af8d42b6c5131260f395baf5063fbff7e032. 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/INT202303571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ef1771b7323d00201bc95f22f356d509d8d25c03eb98f0c4f8f760caf07363. 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/INT202303921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe852160c37240fe71cca9c7b17e081fd56d5e9bdf59dcdf0fe7cd2c365a0d6d9. 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/TCAIR2456589.
Kadina Kadoramee Andakadaham (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785dd0b89427222d7b1b8b9bacd31845c2a3bba2ccc655f91a2a54a5d97d77ee. 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/INT202303535.
Hello Mummy (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf340afd406ead8eae5a39ddefd91481ad674fc53308b3092dfbe67471abc6cba. 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/INH102413241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1dcecdaf6188e492d290f207e5b7e1a0089fa4531940d8ebea0bb31e3b37b07. 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/FR2X42576691.