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 0x227ae9f8d06e9d743819d074dedacc490a9af785a7aca87a831effd84cdd54de. 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/fe7e0b44-505b-4eb0-8d88-dd78299cc6c7.json and https://artists.proofprofile.net/proofs/artist/fe7e0b44-505b-4eb0-8d88-dd78299cc6c7.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 0x753f538e989cb64b9ceae1ffdaa4d315c736e3fc29b4cdb16b546ba06b14aa6b. 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/QMFME2295962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e941f844d12be46947e52a7b179832519b85fbb33e0e80783529b79eee93c5. 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/TCAFE2091820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b211398bf524a825c6358ca2c8731de192c372aef216626db9bef60e8afb78. 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/QZW9L2253817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42994d55dd9b636c7cfabbde2712bf0e9488700f19161a04c03a6f1cb73318b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZW9L2253818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb120f0792a285c54502181b813609c17d2baaaf002ce5ddbe433ff6632495063. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:41:31Z), 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/QZW9L2253819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ed53247f2a47bec5e810fa21d162874be12b045baa74d6e36b10bb5e97e64a. 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/QZW9L2253822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa550e203816957566064f2489a310493bca7955c5bd28150a03fc22363ab48. 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/ESA011904233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e6e12a2206c4fac4e35c4b76689d0eede6b318d6c77f0f16cb3424eefcb586. 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/QZGLM2107557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d764d6e8b62f7354565f537c99f490e2f2c3d7356a7b445782bba8a4827033. 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/QZFZ42046109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd158002a13f7c8244c082d7011a0efc96f7f60806754230562fd5eded1904185. 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/FR2X42336629.
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 0xb9105b90e9de4dad5bd82d1a851f5a086bcfac559a1916ff3d0ddd7d0587a63f. 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/QZW9L2253820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36a0521879608b544e6538bdb9e629e6b81a666a35722638cd680f74ad306b4. 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/QZW9L2253821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5a195ec6f9bfdd14590e2706dfbd085067cf6d1af9f0d35e29344cae8b2718. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZW9L2253823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b555e9cdaf9a7efb138951a026b2ddc1070174a4d1f4fcda4c02e4fb7745f2. 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/QZW9L2253824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16228ab6027fcee6244bd3609b8ed83f1e795ba5be2791912ef7866a2ea25d43. 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/QZW9L2253825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3323fc8e90d3572bdb88b25ed86d9f1e770b969ca2f2634ca4e0cd8436257577. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZW9L2253826.
Súper Vacío (feat. Escandaloso Xpósito, Horny Section ) - En Directo en Apolo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec219d3d85ed7a27674c4b5a87bab1f0628acc5425de66ff185a445153982fce. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ES5152200125.