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 0xc85424d3d8c2ec2b43b0f6a67191bbfb5b8f49db3445b4d54a5fe53090448987. 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/59de0f48-52eb-4309-9c56-b4920fc5695f.json and https://artists.proofprofile.net/proofs/artist/59de0f48-52eb-4309-9c56-b4920fc5695f.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 0x3e6bb35224340875779750b8031c09606114f8b6e740f62d50db2d40ff0d3b78. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QM3DF2219075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce84571a683dacc00ab2c0ea956877a92862bc867bc235565be67137f4c6700e. 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/QM3DF2219076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb5130c436c350400233a09796085425052ceafeb2e1bcad28e6f04d7741424. 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/QM3DF2219078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811107fa423b295dd16616bcdc0f62651e3b6b0534907cadb29f0948199f72a0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USANG2275640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492ff53ba18606161a5d41761af6939021271f7020d8a5c8c1cf2532c2bc0d09. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QM3DF2219079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1dbab21be748254e26a5dbf5b8f54407197237ae60f1f881fb9e4d2d941564. 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/USANG2212088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf61d2f4a59202b4af2a15f5348e92cae4c2b29ba93d94da701bd6b6d9e8ec3d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM3DF2219080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb965d81de26220521da8315aebae771c95bddd0c486adfe52e62ec1a12e60e8e. 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/USANG2245855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0673d03165edd82e04c66fa5b3c67eff21e2cd02c8325cfc84334fc0d62e8bdf. 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/QM3DF2219095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf163c7e71e1985512b3d66c6c01ff83be16b11f0d7fc90312995d51011c6fc91. 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/QM3DF2216106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59655ec09528e547f583b79ed28a51cf023d4306530f451ae7a557f0deb06503. 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/USANG2295704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1255f87de0351118100476ec8ac5129eb00c4d082dc35db2b33d576e26c3a726. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMANG2216494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a75a4dbdd8ddf35ad78482c2edc3309ba7ac80def4c1697379eb9f49ea9f30c. 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/QZWDD2583948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38457b8efb01b1d56830305f594493061386db8783fe5616713ebddf9573afb2. 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/GBWUL2582974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9800f9e289aaa23213d2e0422b02a84f4b1570b74a91d66f44f7c39c245cde82. 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/QZ5FN2579957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f81b6f5dd0a02560fddaa90069d929ffcc8ddd5abc69eb2277bb6e6f3d772d4. 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/QMANG2217473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59c0c42e8ebd2c7f9089f89b3da36a52db010ff01d514f4bad1bc35ed932edc. 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/QMANG2221444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe812c830596ee5e9288f957fe5d76186482c58fc1513f386a55c094e982a037. 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/QMANG2221445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9745b460359f7afaa011a762d5df7ad657c033a4502a15227fea7911de2180e7. 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/QM3DF2295156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21eaf73a0553ca4683c6724c2f0a7ca91b03b5db3bc32b05b53b5abc65beeb3c. 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/QM3DF2279449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6643405ed9bd685529350d3cf2ae3b6485c3d3896bed64e6ce75c76e787c7c82. 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/QM3DF2285003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406b11390ba6b1d48c551fea8e7bb1cc859446da9761c4f45c5d112dd0d3c8a2. 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/QM3DF2248769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c21907200cbc581ca87ff9d11e65335fd27ab54d974beb00e6d155047cd7179. 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/QZTV32314227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3334fef250a75b0701164d7a6a45159065cc977306af2298c3750223b6672085. 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/QM3DF2219113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7b131c31545a7acbc5ce44979544dfa600e8db62672423033bb0b61d4b142c. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/US23A1562919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e5a84e5e4c7b189d7144b85b1268cd88849a21b87cc4131892aaf555b369fb. 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/BK4DA2300925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58163cd43cfa819580555a51d6518bc40b3d49ab0b34560c1ec09bcf2c3d3321. 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/USANG2217932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c044fcc9f5763a2b1d49f9d6741cc0dc823831aa9286bd75450eea51811e27. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZZOPM2238111.
Inolvidables Vol.1: Boleros de Colección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f305845302d211db979184c783ff02a6f2666fe5e22ed8274b913260093a737. 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/US3DF2261357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03d037983cd7d76849f1bf04b4ee94dcd2149ddea0d52886f1c907dd0dbfdd0. 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/US3DF2261359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d57c9caf1dceebc2c957b6417cfaecdb67c60980c1b101070022c2b789965a. 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/US3DF2241306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d57c9caf1dceebc2c957b6417cfaecdb67c60980c1b101070022c2b789965a. 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/US3DF2241306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618a43055012f81272ab2187c505bbcc9c9bd58df05fc0ec847855026164f73b. 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/US3DF2213214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e467b841108440a2090b53ff33b7230e0d79191ebe7730d471dfbb9ef3a64e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US3DF2204869.
Sé Pero No Quiero Saber, Entonces No Sé.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b64e3ad479c4bb12ef47939b3a9acf05e544d83519abf576cefead194774569. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZZOPM2120475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248cf19488dba79d246b96bfaee4e9e4930865b5d4255a054475feccfedd6680. 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/ZZOPM2120476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1255f87de0351118100476ec8ac5129eb00c4d082dc35db2b33d576e26c3a726. 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/QMANG2216494.