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 0x02bbdea35054ae32c3eef026d0c9bad3c6feeb55e8b6400bc8a0c4ad2b0fb3a8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7358eec-9629-419f-b228-0a536e2b017a.json and https://artists.proofprofile.net/proofs/artist/c7358eec-9629-419f-b228-0a536e2b017a.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 0x0b12c0c21f26fec047e997ca9322ac68762906672a3d9bd463f86ead3521109c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CH6542122600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423cca39232662f747e3e50edcb72d57d49fa9c4164290bb003f5e71acccdda5. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/CH6542122601.
Yo Soy Cruzado Porque el Mundo Me Hizo Así
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814cfb5223a09c32712d9c3a94bc7d87ffa4c78caa3cb97050c5f0c5b1321434. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CH6542122602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc29b54b232635f4840670facc97eead27ed86f79ae8fa96177758ba5bdb74fd. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:23:15Z), 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/CH6542122604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8597e9d3bb13f332665c61f6da8c61bd362c4537cbd2dc0aa194949673b9d6. 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/CH6542122605.
Carnaval Toda la Vida, los Cruzados en el Tablón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65798a5103aecc6d38c5a9bb6b64779afa42bde4ef1e97769bc9c9e42f2f9313. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/CH6542122606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488ba386b56bc5d108750231410ae60bb6937d21de5f1c2617014d86392d36ca. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CH6542122607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd969015aac59492b8c6ef91f6324bf0dc32aa0c29670fbb890661ba65b9819. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:53:21Z), 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/CH6542122608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fc9ea0f15af63a8cb83b26979a46e01053472785777e8a16ee28a230a60122. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/CH6542122609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c723308096795dff3a4308b7faa6101868ddc6b43127e56c0a90201f0be2a0. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CH6542122610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e14ffd6f5636b0eaea4f9e2a2ee74f67648025cbdf2355b635ddada46b25456. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/CH6542122611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a7e0cf362dc0f70829cf6d1b71cc8246dda9987e1b639e1c2f80f2e4c3d2c5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CH6542122612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb951f26690bc2fcad9a9f7243d275a6abd01d66232ca6f0bc0189e3f99220d3f. 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/CH6542122613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1e75adb16db9929e06306c5be569c4a415aecae26e5444be41a93abc609f3a. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/CH6542122614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5642d80959d2590562ef399021f6d4d36ac1957b5948b67429ab68ffd0e7fffb. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CH6542122615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ff6a92cc2339b4927bee7e7c2bec71528b125ffb5272a386cb47eca78fa246. 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/CH6542122616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07b8e54d6499de89e2709745b04213b49ad24d410b2b0a307be424c345ae912. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/CH6542122617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf052617ff85dc20a268706a65099f1683c42b9664d69c1e644ae81978e103581. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/CH6542122618.
Cantos Barra Los Cruzados, Vol. 3 (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7df56c80773f43e6966afede2f40e9f51a4956b7427727783664861f3a0758f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USDY42426082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4ff940f5a2ac4cb4925dc0cdd2ac7d622b260a776f508de639164bc455360c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDY42426087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9f6a13f9dac923a437ecaa502730d0bf7a8e921421a5c4a036a5f7788625f9. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USDY42426833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81259db56542ac113ed7e8e19a18d61345c493ee6ed3c840a5df75be7fbc0019. 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/USDY42426834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4159bee2e043d07d16212004010ad7db66b72e19573b8049f2e69ac103653c3e. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/USDY42426835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f697c825444225ca3e82acafb408467047bbd5f5a879032f9406a12210a6006. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USDY42426836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da693a4b9ef22224c925a45e643f60e419c9d53d59ebb58766f2cc3925ada03. 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/USDY42426838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd197a541f772b6a721834207be6dd29fb2e3e492b2db3f713d2735f65357f45b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:31:31Z), 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/USDY42426839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09752f064828ddb0a993b99a6f461886f64f5087ab92ecbd16e9292e96adf427. 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/USDY42426840.
Cantos Barra los Cruzados, Vol. 2 (Remix)
Cantos Barra los Cruzados, Vol. 3 (Remix)