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 0xb334eb187a8095f46a3f8801afbaab7f142c394365372fba27ea32781787a37b. 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/9a935283-7dd9-4f52-8441-e21607847d63.json and https://artists.proofprofile.net/proofs/artist/9a935283-7dd9-4f52-8441-e21607847d63.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 0x8fb9388f9f844a17e3c06b6d741259adfd98d34f655938e3d558736bbeacac0b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZ5AB2181443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ac2a8c281d24a236f89f53e3d800f61b427d1e09e2fc5bd0e3dba3fd794e53. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZ5AB2181444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04971febd2ddc6027bf6d2b086eafff611374d69b6af2b3f88fa9a1e1cfad362. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/QZ5AB2181445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec3225d2f6034fdf9effad6fcd4b661bc8130fbd994c45941557e5a33a0f603. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZ5AB2181446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5b88fdd3be5f515917bc96553d840d7df6f97bfcacac6e801cd44e6f6d0b11. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZ5AB2181447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef2fe9b2cf98ac5b2feb7049f41b91904f66aa4c35d606b93602c5529f0d774. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZ5AB2181448.
Danonino (El Mejor Rapero de la Historia Bars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5d433aad8f53d1d152350aa86a666c60725ffd0e5c4f4981ff99ad985f7815. 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/QZNJZ2127092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff8703efd19c1a4e08d606c417f34593836f4bf890a07db9a5b0121f2621b4b. 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/QZMEQ2263593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e4342af4c354a08c3261af9e6cb6e2de19695712952472d73e101c98b0bcfe. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZMEQ2263597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949f0f27b6b195f59d7c4461f5759dec455dbe665d23ac6089b6141eb833eabd. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZMEQ2263600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c268ce92b9cf944a8074d0ebb80ebdf0d655eab696395999c6e22d1cfddacb. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZES62395806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2fbb0815976d52e1db3869a756568b66c3c254ddc78e78a88f976d85a53740. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZES62395807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c85636133279c0f8c1b8bd79cb6ca944416e2b3c8dc2be6fd06e2a136c9db75. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZES62395808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae7870343a48e99f074c373f98d7feb4e682edab99e612e240b3ad60249cd5d. 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/QZES62395810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec037e1e3210eada466f9982522dd6df42f9d65055d0816b2d5bc98ace31607c. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZES62395811.
TENGO Q CAMBIAR (DJ GREN8DE Remix Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9221ae953fb2c6d9a3a208d83c0a9f2774a73f2ddb58a97be4b6d019b358d36f. 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/QZRP52395544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7085603a3c6717772888844434f7421b8219771b07f84d9c3a8e0164d5f996ab. 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/QZWFP2344396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84351f53892a93a0316c17a3a7a795a3d9af60d49127fad12cf96f9a5f6c7df. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZWFP2344397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a8c3c355012dd56e0ca584407de2495b631da5442e861a7b5450905733ce39. 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/QZWFP2344398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d1b11b2bd6448bf4ec936a80a67616c94ae0ca440f232aeb3177950e38f47b. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZWFP2344399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e52d3b48f5ed8fba43999a22f9196d93b378257005cc78b0123c46d75df98ce. 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/QZWFP2344400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f5cabfa9de6d7f4a0cb15de22139cc8a7b619f9cfb39236de27143b6d0291a. 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/QZWFP2344401.
SER QIEN SOY 1 ...... WHY U HATIN? :_ #ELMAPA / GOLDEN RETRIEVER ##
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aeb5df196e05db6aad561bc20ef0f5b3b442ad993f71d494b0f0e16e527dc2f. 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/QZES52474585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76ac4ecf658e669ac587fa4cc2e9949889ac5b245406544223b4c723f6886f6. 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/QZHN62441134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eefc851600f0ed7b9506c4aae38152f0083fb440fef2075698a833a1cdf090e. 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/QZNWW2454269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589b51c386b8219da315dc9262e8d22cbb0a2ef83b6f2d27261c025f3f5ff532. 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/QZPLS2448410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f7ec097244bbcc70432634b157cb1ce413332c3b97a7783537d75476eaf8dd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTB42400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4c421396ca3e37f56e93dcb6810597af72116d23bb889f6a2e6802f6d65e7f. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZTB62462188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb410452e7a004421e722812dcf06dcf8ec92fdd4b9be7de507486d344f705bdd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTB62462190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d09f8e0d5d983eb7732e72addf6d28358384b228b3e45da0c80efd92a8c1fc. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZTB62462191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590dc18a9865a724cf0c45cf18d86d63f5893ab6c0958e864856c6bf8c445c00. 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/QZTB62462192.
A.L.F. INTERLUDE (LA PRUEBA D Q NUNCA MURIÓ TUPAC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda0d253d69cf20d36925a0a4dc462e25d3c765b7916cb28dd2b118eb13ded21. 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/QZTB62462193.
SUBWAY SURFIN (TOP #1 GLOBAL 2015 POSTA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d9b7db09b52603f735149c99cc6a819395e1d0ee4b72c179b8beecf75c570d. 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/QZTB62462194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e15835bca283512e4314a61d1839ccefb2629894064431adf3132777265eaa7. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZTB62462196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae92b5b190b81422fb029b7e673faca15de856af3b880d1e9044e52c442975c. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZZ7P2415068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb0a59d09b680668e898d8b9739d718ee6a0461acfc2a43efdd1861e7ccf0c9. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZMEP2534116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9326d21ff0610a418bc39cc28db63a58429c1c80d3fffec20eaebfbac34a6b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UYB282411507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b00fdade3c5e265b9d0dcba4c32875f47e577cddb0e99a0908279d31a610de6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHN42424141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c9af8d3de9db938e210e1e872a7c81508fd33661716a5b6d5eec5912c7cc3d. 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/QZTV32406922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c935ed48cc5227bd2d418c81da5c389a7ebb89878a747eb3c844da40314854b. 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/QZWFM2454136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2652eefdadae5e1b4deb5d7d448feece5c1790280215a2820e22814a0f1bc9. 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/QZK6P2553555.