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 0xd631a19c504e4cdd32eee0a7a501b29af5733f6b1d639fb9e61cd81e201cb9f4. 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/da9a8a3b-513e-4500-a04f-3a804b821c79.json and https://artists.proofprofile.net/proofs/artist/da9a8a3b-513e-4500-a04f-3a804b821c79.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 0x8bbb6d70343f98dcf4e25b7badbb3491b503d948cd495b393e5730c7e181c914. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QZTLA2598700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b215ee33dfb9643471883c7fb819c6e6f9edb94132cdd8f4460cf66ee28285f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTLA2569128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a10003c14938c92e33fe0f5ab129adcceb98563ba1f42a1fcb2de8e1cc88ffb. 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/QZTLA2550623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cee85d665e7e4b741cfdd60e2fe78ea01572b1a638f48150c460a2d583b64b. 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/QZTLA2539434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1043b948ab8b093c9f6ba57a7426baace1f9461b334e04cebe6510b34084c50. 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/QZTLA2566860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edf56b91f5a7d3ea58610554f8683b463ae720baa0ff2817f357ed5139fb0c9. 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/QZTLA2502082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ddf74821be0e3ca71f07f6c30ca9d521082ca43222c0988f305458ff17ab6a. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QMGR32182023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5050f16718cd82f4368edcb6c7f3ebea27fa068c1db4567c208fbdc2bce4f936. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZS7J2503403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7946ee162906ee2400bbee2c3148b1acded39bb5daddc202288c0f7b49138cb1. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZS7J2597152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1c06e8d86e1e7b7f191d2ab1d2b1e431fce3b163a5ef3ffa0addc35c9ea33a. 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/QZSYP2547683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58744bd74e503503637dbe795696d8499cf9e74d1f74f8b86791788ab9fe127f. 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/QZS7J2593499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1154cd6212a0e890d862246e18f8395028acbd0554159f91002d94ff59f10d04. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZS7J2545620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfe99ef0854b084f6a51d31968d13ac270860dd34ef36a030cf41f95a98af4e. 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/QZTLA2501224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8454a1af202a8f95c78d8fb0167511ac3d70bebb38acd3a87f091f74fb261472. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZTLA2570532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37da0e3e37dd70a98dcadd60a56b5b22f4646744b24d0acd1fefc083a74be15. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZQAY2570949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d7d3e878dd0f2be558f56b05c3103d5bff0c28143cdf1ed9074bedb6af7c57. 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/QZQAY2255914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ced01f9eb75cff0aca04eecde0e9a237106ba3db585e6e4f03dc88c3c10930e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTLA2403549.
Intro / Homenaje - Luna Park Deluxe - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8d34b328e898dae0b66c0bb20330adfcd21105d7011d0d5ad17a098e92e229. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZS7J2441444.
Pase Lo Que Pase / No Vales Nada / Salvemos Nuestro Amor - Luna Park Deluxe - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf41483d1f606d6912fd177468fd55c370af4580371d18381b2ca56a97d1c00. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZS7J2453987.
Cenizas de Amor / 15 Días - Luna Park Deluxe - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4444ba9ab554815c6e792d5179463de697bdfdc0e09afdcbcc252c6ad95096. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZS7J2405178.
Descarada / No Vales Nada / Mi Corazón - Luna Park Deluxe - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b9856248e1dbae42663757a191394753c2c6f7ee705aeb3f5e5d2fe247fe0b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZS7J2468435.
Buscate Otro Amor - Luna Park Deluxe - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed97476735de27370bb114b35c6c84e3a59e87dbe6adef58bf97a2ee80a19205. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZS7J2404264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fc41bf19511b5c92649c405a199001d1bfb21212a8a1dcaf26bc61cc88ea24. 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/QZS7J2518610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a509d5f311e12a0b94d5603eb05318e83838742c4b3f86c43a7e10058c08686. 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/QZS7J2536693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eef8af61bc3030a4d463477b8cb44924c8e45fb9275a00b5649c96bf5083ea6. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZS7J2523636.
No vale la pena / Salvemos nuestro amor / Libre quedaras / 15 dias - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420353e903c025517252dba02d4e9d671e3b4bbd1b67772b3cc2977327793f63. 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/QZS7J2530858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dad7f2f239edc945e9958ca5b242d85f56f01aecd744e166240652e8a88064c. 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/QZS7J2538761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc228d96f00af72ec7a530b6cf8390810caccfc8ec735b662c39124cd69a081e. 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/QZS7J2537068.
Todo se paga / Vuela mariposa / La rosa blanca / No vales nada / Enamorado de mi - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d02905939f929f80f24e4be34d4c24693c6b8e7a7d912856b060eca3a855da. 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/QZS7J2596373.
Cenizas de amor / Buscate otro amor / Tic tic tac / La culpable - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7109d69387feae18f929a6d1c7222740be9b5ea8422ff16d7569f52acaa8e5. 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/QZS7J2581671.