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 0xac9f8edc3c6cd92c57cf07ec5905a8736de47355ee1a98dbf4097be2c3068ef8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e014973-6c52-4f9f-a60d-61866daa229f.json and https://artists.proofprofile.net/proofs/artist/8e014973-6c52-4f9f-a60d-61866daa229f.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 0x20c9e942b8410e3ce040ac322b0dc50a74c53f2cdf511313e080fb915b314131. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCADF1723709.
No One Really Cares What You're Doing (Until It's Done)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa72b8e2dd20e792cc5d56fb7fac1b7d705fff8dafd19ec9304f3d9d34baf5e. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/TCAEL1981306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632750b59f5f6414a9aff6ee838ae51af7c7742490b8e297347b5e154ce25e01. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:59Z), 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/TCAEO1939854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3a8608236308eefe48716def886c4bf2839ef0d192d377f897f8fccf9d051d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:04:37Z), 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/TCAEO1939856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429cda7434efe892c0b041c1a30ed36ee1f9cd8e6132dfbbd362dc0abfba762e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:06:49Z), 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/TCAFE2001183.
It's Always Good to Tell Someone You Love Them
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532280a11a75e05f403db5c87f42da5db30a51a17b7bbcd3f94c8025c24c7bbb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:06:35Z), 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/TCAFF2063613.
Rock n Roll Killed the Country Star (Demo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f9caa97921fd0e82e9d59cd55ef8cebbf357aed06b275b1a7484caa7afeb9b. 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/TCAFF2063635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039d5f251e44a06b450f062abef2ac2ecd35c3151fbdcd3a274b98718352994a. 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/US39N2306079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01a4bc55afb843089ed389037dbe02c6861f5a829c15a46fb2362d8a6dfc994. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/US39N2306089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254377196f18564b36c808b983fde78bbec6f59d96938d72b4f5d3017c442b45. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US39N2306090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c8e1aa42e20b7e1cc38b5819a13af1b6b07bc153b441cdc694f501bd4643f1. 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/US39N2306091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634517510d71451a2ae304d238ec2732b0c01dadfc4c1f91bd19113723a013db. 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/US39N2306093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d9c1611603fc2d6922e9ea649d10b6389f1344f53237555c28535fedc12ef2. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/US39N2306094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa329f9c26f96147c9f332644911f418fea681705f3923d13183fb8a130f5420c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US39N2306095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4d26ec65964bf8f9ff0f5d07a00d5b865408c74c00910ddde9adf08528226c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US39N2306096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43920238309aa0174f980f75f8cc5576b8686825f88275e01da359eddf8e45d8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US39N2306080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1f48c9cb425378a6bfca449824920aab670229eade5c5ecb5d3db90e0e8dc1. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:00:34Z), 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/US39N2306097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b8742b5600017773d4e2e1e7703347e004aa4494c70f80dbb018fe913437f6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/US39N2306099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1829f145432270c41d521c8c8d09cdfbc36a8dd15796825398e5fad7703eb9e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAIZ2462131.
Almost Always, Never Nothing, Never Something