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 0x19b83049ab27af00f4bf913b350ea1ee7db174b5f894d71e15ac820297a92c69. 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/ed2da6cc-bb79-4316-a342-d947933862a4.json and https://artists.proofprofile.net/proofs/artist/ed2da6cc-bb79-4316-a342-d947933862a4.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 0x78cfcde1b13c5de29d4b2a83d5106ab97a440d3028f9dc953163fb0f8f8f3d73. 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/ARYSP2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa91e5145a29a1e3ce9803b5a4ae6c635c7d3ce68884164a1d0bd1308e6198d6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ARYSP2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd055b8a31152bab444be1336ebfb8732851ac24a4c250ef8121774b2eb2f806c. 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/ARYSP2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851d84231de7fc746d28b9bfd09136afe144b55d53971989239f87c69b7aeac5. 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/ARE562000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e3da3bd0896a97071e103047e604b821fbde6444d42b9b002362e1a656f5c0. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ARE562000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d516eaf457e70c0106c22b14e5774b59b9a7ad096a9cb1c6c6cb40877a02845. 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/ARE562000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed2a816b89d88dd9750c6feb25c9e567fb04078eb265d9ffceb01da69743909. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/ARE562000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9605c1aa8c6869e3c55554ebe99da02cf181f9c29e73d4da54f7097ec961a666. 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/ARE562000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb4ef4f9b27816aea68c535eb7a140e1163a40793841395b0abc19ca8c7b724. 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/ARE562000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d2024a2fe30b1e66c57aea872808151c227cf7999b6302c4ae12f887bd5096. 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/ARE562000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf693f2c8c5311a3c403a327d788b919691e8ce4b8e7e38cfa021f56e66124277. 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/ARE562000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e190eb6ac99e7eaddc1cf0bfdf8d3909027239c2d5ffe156ec5bfa0b95b40c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ARE562000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc98cd82ec18e84fea99c32a068285214ed9f5a0eb9f4a8ba7be5d36edd43eac. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/ARE562000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c017b43f72e8628003858095cf32058c972318fc40c465c70dd0cced28bb642. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/ARE562000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92213c077f38d246f0491d904200af3aa23290b5066930abfe5cec0facf1db31. 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/ARE562000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10c69e122818b4bc02901733152b98952be009d9dc77026c5a9577ec304696b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ARE562000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe6cc2e883e4e687b5fd92753c74b95304b715047152dff67909b981e877312. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ARE562000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3a2e8271cfd1267e3c59913decb344cfeddb10579309d40fe4cd49b2372d22. 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/ARE562000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844b2fc0c3431a5c4afe6e990b398a1489cc44b6573c6eb83017e6fb95bf103f. 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/ARE562000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5dda2b7570228896438f27b9d3ee3f7b70daaa233f7d0e0df149f691a95f3e5. 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/ARE562000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e4381428a9689f9ca08ab9408abc0c1371ffab790a4a5ad49cfc3e1c8f03e2. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/ARE562000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25144fc18a97600ae9be3d439126a76f6bc8967e3d60608a90877bbae16663c7. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/ARE562000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb78ab719a7eadf3800d71aefd89a2b7667f715b8f79ccd147e8becfb8b84a0. 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/ARE562000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf250c7ed09d9cd702891f603e5835280b7b5d7130f66c880abc575aa683d30a2. 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/ARE562000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db510ea8f7d29bf3e4863193f21e83e50c0cb7703c6747ad49836c2f2a8bd8b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ARE562000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8b5bc100cf4f3d7c7ddfb821eb2dcd865e050ce3e8cda6edc8401ec0c819b0. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ARYSP2400055.
Tomo Lo Que Encuentro - 19 Versiones de Virus (Remasterizado 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f679fcf7f5a9bd46ee7e00b09914307894df3ca4095402426e6eb353378817. 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/ARHXW2200851.