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 0x49ff63c7efdd0d60ef517185d15e612b44a58a3dc2e6b5e2443380252bddf0cf. 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/275b6aa2-2723-4bcd-a9b3-e2f5fa5fe680.json and https://artists.proofprofile.net/proofs/artist/275b6aa2-2723-4bcd-a9b3-e2f5fa5fe680.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 0x75edae364980ba1dcb1ec5a2d5a3c0290cb1c0940e6df51c1ea27adeb92d9122. 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/QZ5AB2464776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067ddc354e2bb1fb00acbcf9ce05bd689fa75b5af36ac554133dadf68ef3204f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZNJZ2304866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3798b21f644b6559ea0443f3954cd99770f84b04cacce7a7a46e9e21807f3fda. 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/QZNJZ2304868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6b2eea22cb0c0bf5415bab983aa456e9f2ca57283c62079128a54aa318b7f9. 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/QZNJZ2304869.
Canciones para el Volcán (Track By Track)
Hace Tiempo: Casai Unplugged - Live Music Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3382b11a1dc927de0d4162f45fcdfb409cf852a08dd8277521a66148526b53. 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/QZNJY2106651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90679612142fefb87ef1c7fb33f03794cd49ea26faa54f8addf2aa8202f63fa3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US7VG2067839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b7e7eb4e62213954c0191657f7b32c72d509e8cf01bc8acf6491c9c456b3a7. 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/QZGLM2025885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d80caf4ab657193003b60e8a59e970cce2c099fe1b271d8bd3294e882a94ac3. 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/QZHZ32030557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c36a3444324d215f94bb545ebd8f48f015d469fe01a6968fe96f90defe1a16. 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/QZMZ92028866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55b747f6f5ae6aced37b990d9597fcf7bbb28d0087d3bbe2a60890962dcb1ac. 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/QZNJV2046430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191f1aa6b3f4db466fe75526bbafb2fe9721fab1b0f48a3bcf78adcd0322fb07. 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/QZNJV2046432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7015188523c94993e03ddc6fc225b1b675f41193086fd226de93961362e339. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ5AB1966000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25f4d1d6b947837f88cb571eddd3fb3cc4090d35f449d8e54a420ec6c48394b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US7VG1871244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be852ed8a0df6dd591539d1680e7d24fafc70d494d6f307659a7ed50d2f40bb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZGLM1960586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf177b766fa89975cc82c5ff8c99eff90876bb93b4a0f5a0b20b03d29b041200a. 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/QZ5AB2005132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3057e190ccac085a3128c99fe445f0c67ba356f017ae6f855b1115e7581234d9. 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/US7VG2322212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76ccc91217db57c4d211f4f6e36c610c4513853395573917589688cd62c880e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US7VG2322213.
En las Olas: Casai Unplugged - Live Music Session
Aquí: Casai Unplugged - Live Music Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d9aa31dcf2f652a5787a0cda82c502d2915fe5785865231251bd20e4bfe816. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USX9P2075963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c36a3444324d215f94bb545ebd8f48f015d469fe01a6968fe96f90defe1a16. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZMZ92028866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b7e7eb4e62213954c0191657f7b32c72d509e8cf01bc8acf6491c9c456b3a7. 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/QZGLM2025885.