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 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 0x4bc0fd4085db2534130e956b3f266f579406c66af3a736b0400dfde63034df34. 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/5861f32c-7aa0-47e6-99cd-4743a8fe8bfc.json and https://artists.proofprofile.net/proofs/artist/5861f32c-7aa0-47e6-99cd-4743a8fe8bfc.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 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 0xaf5865ba61860c7a99713888a3c42d09ce747e6ffcf495b13a780e4902bdb106. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:14:03Z), 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/FRX452070364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4028bc12e0e6f04b1361e31df8052d904e6f73dc00a10fda8b48c9dbdbca9b3. 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/FRX452070366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605dbc82c7fe03a5f380b7aeb732831e3b75d55fcb234016192b43393920bbcc. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/FRX452070369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5bfe5dc0b09a65a99a2d1be8205073a0cf09d31d5539aab10c9627db61d0b7. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/FRX452070370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53674413a1864373ab3bc58e98f749e5b9ca96bd767cfd11d27a05837c11630. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRX452070372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff3e970a41755c1954470a65eb27d1552d67742bee9d21668a1011915c71fc5. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FRX452070376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4447affaece41d047cc57cbc433c2ffef14d923dd4e764702bfad958440fb001. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRX452070382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917aa5d37241c4eea12d05bd838670ec54e75d365d2aaa7e1f3ec1b89d38a531. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRX452070386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafdddcebabd3b259d8db45f9c2aae39fa7a737e029018d51b75b9a9aeecf1ba. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/MXF019700813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64af659c4a3f2450d62e1fada39453f50f923ed38aa691131ed8f9f6ae7ba712. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:58:02Z), 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/MXF019700825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112bfaa68b96acc3eeaa608ed8df17d30dd4b3e1d47d0dec27cfb5d7b41355b1. 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/MXF019700818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92059cf9f052750c23a5e6be964ecca56c5bd6c8b02c9d551dbbf4a6a801f57c. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/MXF019700819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabcca51ea5e66fa2157a5d5ee2c1bf78dbcac6d3a4f15ca948e58459b057665. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/MXF019700820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b5ae6a9d1fac3391cd93e6d6fd8639a84caaaeefa831acedc80ec1e2cce4cc. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:50:40Z), 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/MXF019700822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab45dfd39b6bd1cc714217f9a2344d3ba12251d0c47f5de1d6eebd1bfcc05d4. 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/MXF019700823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c99c6a7f8426238b1de84be4e97ac5a7fc81f246e9d3774cf3aa13b587d476. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR6V82523395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f8db0d017817cf87ba0d581b030c7b823dd3c66977a2288c826a1f58c02b49. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:37:29Z), 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/FR6V82523398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fc475ad437d4073f6729f2f9ee38c19395846a1f32d41bb710620387698213. 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/FR6V82523400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13038f6ff53466563f2f6bbed5eb1e2c0984421468c5d5770fc597cba32dec1f. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/FR6V82523403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e45b773a22b4e04c9ecaa69c73c29ec2db05aa63bcf276916852b007273dae. 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/QM2PV1881142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f13a5d3ab2a0bac6fbd04c62af804f9a98160cca50e1bc8980e67273be7060. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/UST8K1802057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec57a64c9f1afe0700516631899d93b445fdfd92d5a3bf8a5eb1d2be65e2806. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/UST8K1825192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d533292d933a865cca49a55a3f4dab4b2869cba4aa9b276004e0f30c573fee. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UST8K1825193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226aeb1547f7288c0cc7d490a9288a6fdf289209cb8e3d0598e09d9291538fb9. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:35:38Z), 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/UST8K1825194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978fa19b27468a3b664c31147aab7fc2008b0729660a6c21a70443ffdfee0e17. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:35:10Z), 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/UST8K1825195.
SOMOS ROCKERS, SESIÓN RUIDO ESTUDIO (LIVE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936e69aa60203186cadaf3b146223816ccb090f341c1e8eb4b5c57c00e3ae67b. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:45:43Z), 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/QZFZ22275240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189c4d77c0345bd5b4d3298dbc08f46ca19c4b6aeb87ed324bf7aadf50f5cc3d. 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/MXF019700815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46103f6d265d5317e1c74e784315cc9d58b9455db1e955d6f2fc308fd20f60e8. 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/USDY42518556.