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 0x2a3f4514540e6ffb61d88a015387a4da2bf1d0b611350a8da478efede273a0dd. 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/34b20a79-a522-46d8-a6e3-d1c570444b3b.json and https://artists.proofprofile.net/proofs/artist/34b20a79-a522-46d8-a6e3-d1c570444b3b.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 0xad3971ed09e5c6629ffe29dcaf4e299466fb054a5a5daa0847cb1c5f34f897f3. 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/QZES52236804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58deba918d0da92a8c815d2754abe786cd67ba2e0fff1ae310074bd39d1d67d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZRP52207255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0665ef1b44fe97329a4d1c8bce90b43ac983cd8a360953d4d3a2b373310f8c95. 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/QZRP52207258.
THRIFTED PALMEIRAS JERSEY (BONUS TRACK IBRHHH BEGGED ME TO DROP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb6f446b5fbd1985485ddaa4437b4e4d664d29b6b6c480313cc6d30aa4e41d5. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZRP52207265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04cde23ee795e896e30a255dc7dfd7385c6cd2f33565ff3702a9ce9a4c7aa62. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZDA72303140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b2ee3b969d18e7307d9625d53f863e2ec32419e6ee301fc38a36c5b3c0eb23. 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/QZK6L2499360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9249f5a9f01c84e083daa9a4839a4ea91e378183cc8368a3afe7abceaf224fa. 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/QZK6L2499361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620629271931b649b027d78a89aee2b203e4bfb242b210c85f1260ea3613d3d8. 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/QZFYZ2488235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4430fdbdb3310620037f25433d4b13c313ccb033e238344efee798da92bfaa. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZK6L2499362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706042f761aa2c80be846f31bf24776f41f882f2b8e174d4d8c065fc5ce2b42f. 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/QZK6L2499363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3413896852d9194fd8f119144f537054cfb5b354653798f4068ee96ffd8f27ec. 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/QZK6L2499364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80a0456e7e8d899aa2e0838eac52c84f8d8eb85f569e52edde0d1e837ba9244. 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/QZK6L2499365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4689e2ec73de02383e318fd9137a8b660d27d1dfe7f7a2a2a28a8947f21b1c17. 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/QZK6L2499366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c4f87f4e9b040e6effe12bfbc749cfd5b570c253dbc7a2704f5663ba35ae39. 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/QZK6L2499367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9b71da37ceac2bbecbcce4d40edf17058cd40ba049fb9b40a4a6532e051721. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZK6L2499368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36d9187626e9c00abe506a7316c935468ef5b41d18856b4b022558a113717a6. 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/QZNWX2323417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88edff466c3f4cc1e21f9dfd06f3ebd702088af0eef69d604694174cea982af5. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZK6L2499369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cb1a74835db5d33d33c21a8603c71e9ce2edc2ecc14cc3acba656abb0df8bd. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZK6L2499370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368c6042c666c3d79d4980d954928bc743064b4d9de40426905ea53ffca42360. 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/QZK6L2499371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8d03ec13f57d9c575a14fbd93bcd5770f13d4bc1786e7f47d9c4991da55b1b. 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/QZK6L2499372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f930fc2b30f2b4a6dd63166f3050fc2c6c85c062d4c2e6ce10218ecce78ed6. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZK6L2499373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179c00c874d2de7c1012063ceaa160085a42efcbb3e46f431f9d4c9cfb428765. 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/QZK6L2499374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c70283751c28d6c75542270de85466827be06c73b52188b402c660ac0093f0. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZTBE2457729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb826ace46fbd071f3ff78532adc5094209c57930502b7d2141fdeae6d4eb605. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZWFU2448534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947a05f88aaa329c694c51e255a3cfbd5866f7d1a7fc67c62c29eb4c642c74fe. 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/QZWFU2448535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfb3a0d34df6b981f3d82fa5884866b67296a7825653535f1f32018b7cf621b. 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/QZZ7W2478832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf68470527521d986d9bdfe563108b164a43d582fa7be8e174d593a4b78c8f9. 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/QZES52568942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275e24de2b42465bc81e22a0e6e0e92117091351bf4eb30f6ce792deab40f42d. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FR9W12547073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adf3a2b9486b6e7835b4bd6d39b2717c6cf0236d78dd65c45daa1fe3cf3a802. 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/FR9W12525044.