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 0x14d5742dee06604ef753584fe449fc10d1a3a2ceb630fc2066f5625240a23127. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a3b3ea1-0e3f-46ea-8984-92877639befc.json and https://artists.proofprofile.net/proofs/artist/2a3b3ea1-0e3f-46ea-8984-92877639befc.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 0x2abbd18399f8e9851aa1b4768c4d4cb3fa423017683da2a7dcbaeac7a1b07261. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMDA61806971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9913308b8cbb0374ba6181b759a5385ea2a8826d75be6c5b5bebb26ebca4d6e6. 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/QMDA61806979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624bf60baa07bd830ca8bd7dac39b98ab236d08e119182cb73a5173656a6023a. 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/QMDA61806872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0978b11a47bc48d94bd5a44901d89a20405a71c16120a886eff53b5dc154ca95. 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/QMDA61806874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61c9558001fd92b94caf7d38c203758c0d20fbadf0ceb5e06f208df0c6898cd. 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/QMDA61806875.
Reggae Andino - The Chamanic Songs For Films Mixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc59ce5254b768fb50d25c5e8e9dd230e5ea0cebfc6c6b74d239aa4fc928dfe2. 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/QMDA61807193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d640483f17665b6e411827f1e241381d9e25f514738946d5cf888630ef2942f. 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/QMDA61807196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50157c723d79636170f59906a2511eb750fcb1da0bd15ddef4a62a750b94cf1. 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/QMDA61807197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bb2b2bde1617f34fc2427cf9aa2c1341d51caff084a8a0c877358076f4ef45. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMDA61807191.
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 0x7999b76f5bd7753f0003cd7db31c92b8e30c71a8d27fa3aba0de89469808a5ac. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QMDA61807192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a63e792c0e03b1eb06e2c764a4ef920e304b565bea4c9600b30b976221836bd. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QMDA61807194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50595a2e69ce01d0321230438277dd52b2176c35ada490a0fef6bad7126982b3. 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/QMDA61807195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3465f43d5b34e1d7eeb76ca7927d4956a66aa9d2e490cecb3f9041737c4db5d4. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QMDA61807198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a6c7f00134fafbd4ce0804bb498efbe456d9b3c2853832e810237027d4b742. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QMDA61807199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b03ef648e9503278949dedad3745d535bc8839b0ef5fa676cb5122a2673c2ed. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/QMDA61807200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d535e217fff2d7566e28104fd215ed030699c7f5830749aec3fd1851710cf3. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMDA61807201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6950f64b62c018a0e3ebcbfc5c8ec7a52d16be8dff208dbcedd89b38334bb4c4. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QMDA61807202.
One Love Argentina. Mujeres Cantan a Marley (Vol. 1)
One Love - Mujeres Cantan a Marley, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbece2b6987608089575a29bee0e6526eb3f5679a4e693a4fc934d3e8f5ef83e. 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/QMDA61807376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6638ebaaa942f393b23111bdc323c58d03e33f4fe45db746eadf6a5bd19e7b0c. 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/QMDA61807379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af264dca824a224fd31a979d79c31bf7aa0a3451a04f98c52995ac3cbb1e5ff. 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/QMDA61807382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9efd8d049ba538b0acca50d255fe5a2180f389c9e08284568017099c095cff. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMDA61807371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb0cdbcd4a1d5733d0a3bd2063bd8c6469b18fd00e212708d14b2c1dc3828c4. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QMDA61807372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56310bc1866fc87c150e597919e549a2149549303c92dd3cf92f7d3dbb1d482d. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QMDA61807373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf631d54c1a6bdb47ec21a219e14ae49b8d446e3c63c6a62bfc9931e692329f33. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QMDA61807375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff2d07a026c73525816818baaa123e7826e9f1db2aea7978d9cd73ad9c5dfdd. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QMDA61807378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36795d5d0b784a4e2e7252345503ff1c4cc179b66152e72fc7a01a0926ebb29a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QMDA61807380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee3ceaaeb2f96007c14414d9ec4062ef76db7fa98a9274f41921cc4da5e909d. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QMDA61807385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1aac18d1ea8f5d09642d9e43661120818bdeb2f60d18448d1daefa8e4fddc4. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/AR1A61700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa87e7fff0519b1a669746c61c06a41e645a20542db216635a0e2317895b689. 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/AR1A61700004.
One Love - Mujeres Cantan a Marley, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6576c3915cc6550c4f4443fe21e4188296912427d07766d6955abef3d771d7c9. 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/QM4TX2231473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfa80dd491d8326818da054ab36014804549bbaa86acdb0a75cd94d910dee52. 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/QM4TX2231476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56865c886b697524fa7ee9f265ba4c7fe69fb6d06c01f0515e5c02e0c4f6cb0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM4TX2231471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4e2d68b3f35c23bfcb7624f14918ffd9b50ffc3320429d81d4606e34bfbe7d. 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/QM4TX2231472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d1f26815bea5e1551c8502d82c109f8f96a0ff3d807635ec4b0a7172ec5b21. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM4TX2231474.