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 0xd51b7a32ddd5066138c11686610870c2ca377ac218bb4d879523fca517673343. 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/80af5a53-09da-48cb-b89c-cf5450e94f6d.json and https://artists.proofprofile.net/proofs/artist/80af5a53-09da-48cb-b89c-cf5450e94f6d.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 0xe826898f65852e3f5639d375dd6d1e9a4c99460158bdbbf6869324161c4201ff. 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/FRS182112935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd669c0306c420a4d81145f7068c9c2b490281a94251a424d90f6d1a3affc959d. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:30:18Z), 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/GB8KE1759258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7ba8b78838ae9bfdd611095a5b3c0b548b45f75b8e6361bf2fae3be728fef9. 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/UKLAM1800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f26e2816d6214599a7f5e6e295c1010da75cfefc54cad615b75ca0d4d3d9fe. 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/UKLAM1800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a160e72d5258e0239332a5f1f36c443f7735efed53f21953e1b88ad77ff555. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UKLAM1800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45bf0da588b95665c520399ccd63ec5d30ef0c0754d2715316ee417f14eb6a0. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/UKKBC1800301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2401383c7ed006c921553ce8e9b0654ce92a14ce718cd4bc9429666721cd6f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:14:57Z), 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/UKKBC1800302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2deb4cf18d95a03565ed4ea0fb3f15c092f1fe97dc8ce6101e99c53135d25d. 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/UKLAM1800148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e59f23824969e900d7e1aaa3332ca8696cc921fac82d81db764cdec80d431c. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GB8KE1858084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c02e2f8c76b27029c5b396b3a3434a5e63c65c23f91cb9ea2c24193fa9c4b6f. 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/GB8KE1858085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840e0db4373d8fb931928207b923b9a3853018e1628f544a348bd36de334651b. 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/GB8KE1859526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd375c20da840fb2e7cf2d8fd7b0ae7f88d4588fcd984b398b106d07c90b832f8. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZH5E1988253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd017e9e26cb32d4ffed014751928f73c93657815a9afc109ff271ca8f64c944. 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/UKACT1931563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee92933fa105b74c52c3b5e6d9affdbe2f599be69de2d31d31f719c67e188ee. 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/UKN6K1902689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07efb04b6ccc8436d4ea6ceeb91381dc7272d5579d4e181df8560cf64ff0e4eb. 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/UKN6K1904169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe12e013269115779b0ac54154ceff6d4ef1b3190725df4fbf34535188ecc4e9. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/UKN6K1904170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456493fd5475e29a894631adcaa1f1926900de0f4436ed664637c635ad3faf3a. 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/UKN6K1904171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6885340808892807c1527231394b074e144160cbb809f3442368b5fe264c0db2. 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/GB8KE1956430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fdaaf466b1f11ed15d8ae69aa5765cb2a9b6fe366e9b25707168474905a4e7. 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/GB8KE1956432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306042e2e2616b1b1c6c15e13e9393f7ec53e6b8b590bd4375bf319c2a66fb3f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/UKN6K2001588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802f76f34f627168402760028ef55ddcc835a96bed12c8ea67754473941c7676. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/UKN6K2001590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7328c6ae2968c88b620c803c8ec0c57a28077b1394a6fc0294aff567430e51ef. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/UKN6K2001589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71705c77d58f1ffd1d9a2ee38c45461809c1d6aab78ac040b887042fa0e55da. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:29:35Z), 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/GB2DZ2130003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7d17957e43db46f7c6b98fe64a883321bb9a6396c88507fc8db5f8573d4712. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UKN6K2200173.
I Thought I Would Feel Different But I Feel The Same
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837ab2f73a80b3c7c084abb631e9b8306619640876a7000e1019a5d754b03189. 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/UKN6K2200174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb342d80024cfee350741a990b5c5bb5fa92b130e16b806780cddbcda4a3e9e84. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/GBKQU2290927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5aba2ab2e9df9e26dbab95034e1987370ab0e0769e5bd27fe924b305f0824fc. 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/UKWNJ2300095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5616510ffb0d1805e13944c18bc32b63c162359f3e2dc8d93d6be2197aad0ea. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/UKN6K2400899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f73fd82f781c6ce1a056c45cebde30b4af51c0fb2b9b2894cafb833ff857f89. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:46:11Z), 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/UKN6K2400900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df62bb6368a76d98091947064e5778534400f214aadec40196c69a38f381244. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:54:10Z), 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/UKN6K2400909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8586c8b6d877b7cc189ea90792ec301b331e44caa499e5acee52b882fcbb16b8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:23:43Z), 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/UKN6K2400910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbc234ab9b6c71d823aa732708d86a26d1d0b51a0a993e21558d6fbcc7c911e. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/DEH742524725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc557c1eb7457b8374709751bb06b7a818da15fd2b01fb4686ec4b5283522016. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEH742524723.