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 0x151c1e15fea0b51fa7f8276995c2424f0cc3f04cc5d2f9ae6c4a0c33bf2e0cbe. 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/1b110b36-f5a1-4d97-b8cb-b75cea8b5cba.json and https://artists.proofprofile.net/proofs/artist/1b110b36-f5a1-4d97-b8cb-b75cea8b5cba.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 0x7e5a14778f0fc8415c956420dcd5590f320d75c4f3a94a0489b3cebdd152d95c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ARIXB2402218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e64dda1e074e21bf832347a47eee2235840b03272901d8c1ff97b60add8f615. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ARIXB2402223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf026c9cb91ef6cc37156687587d49a1fff558adcf022de734b91d5dc8400dde5. 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/ARIXB2402224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83ec504d2b35717dbf9edfeb609dfe5a137c7795a64f9e383a42133ccad7e72. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARIXB2402225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5a14778f0fc8415c956420dcd5590f320d75c4f3a94a0489b3cebdd152d95c. 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/ARIXB2402218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e64dda1e074e21bf832347a47eee2235840b03272901d8c1ff97b60add8f615. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARIXB2402223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf026c9cb91ef6cc37156687587d49a1fff558adcf022de734b91d5dc8400dde5. 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/ARIXB2402224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83ec504d2b35717dbf9edfeb609dfe5a137c7795a64f9e383a42133ccad7e72. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ARIXB2402225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da537e290e0ff94098d95aa8a0e42f76c2e0ef01f66ab964f0814edcd5a414e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/TCAEH1903668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ecee8f1358864aa2a42c550a7c3a3deff4af58c0f1b9827ba7b0e486fe6ae4. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCAEH1903785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd994c0237ca810275dd76d2f050debd869cdeaa20148f1e82b63e94d155a3001. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZHZ42032316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd994c0237ca810275dd76d2f050debd869cdeaa20148f1e82b63e94d155a3001. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZHZ42032316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea943e7181e9e5b2342fda49eab3fdfc4b541b8d03fa2345a9de36442d2f371d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJZ2155622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c701bef477b5f91a9dc8e73d1d7705237f674cb8e2468ed42a9a1c7bef64793. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNJZ2155623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469fd398e47e333367cffc931f110bdb6ca539754845142b1bce0dc78f84a6d8. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/QZNJZ2155625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5087f792f94b169617b10b988a9e220bb73563d35566362e6c0e04e3380fa8f9. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:34:04Z), 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/QZNJZ2155626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f045933d9552521e2e836781e11b6ea750407648362e259d016c5524cd1a13. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZNJZ2155628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea943e7181e9e5b2342fda49eab3fdfc4b541b8d03fa2345a9de36442d2f371d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJZ2155622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c701bef477b5f91a9dc8e73d1d7705237f674cb8e2468ed42a9a1c7bef64793. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZNJZ2155623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5087f792f94b169617b10b988a9e220bb73563d35566362e6c0e04e3380fa8f9. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZNJZ2155626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbb1f32cd126419a9c3566c215445a60cefc225e36eb7f5815346a9bb169dbf. 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/QZNJV2367741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30589fdcf3936a125b43974a147d4923ce996065df047768643363cddb66a6ef. 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/QZTPX2356851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3976b1843594edb9d592989268ccdd4b92c73049c3c593e4875215c21bfedf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZW9L2357824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3976b1843594edb9d592989268ccdd4b92c73049c3c593e4875215c21bfedf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZW9L2357824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37f3fb5c2de1b4acb978d6f793fd5e1fef1e9576f68078363ab2720f040bd3e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZGLM2478082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37f3fb5c2de1b4acb978d6f793fd5e1fef1e9576f68078363ab2720f040bd3e. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:26:35Z), 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/QZGLM2478082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73182a051b46566148501e2361647eb953a26afd04e3a896fc3d48529b562f0b. 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/ARIXB2402249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5474557bc851e0f3aef75024207b22741c5991ce5e6c9028d6860413d05388ab. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ARIXB2403073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5474557bc851e0f3aef75024207b22741c5991ce5e6c9028d6860413d05388ab. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARIXB2403073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd4451894da38438149f56e519713e672a81517e66af506e64c633870078215. 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/QZNJW2341154.
El Club de la Pelea - Rap de Peso Pal Ganado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df3bee2f3f9942491e4d388c1dae7895d89ae8a8e2b162489573781d37313ac. 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/USL4Q2328239.
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 0x11a16f079894d7eaa73cff87bdfa9b8af926b337aaaea18995cb4d24f99bdcc1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USL4Q2328249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61ea0e74f1ca99a15d943d00c90e2b99dfdd2eb0151885e0158570f50c5b92f. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZGLS2320690.