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 0x9a58b420cee1c5fce53126070d69fd286b78058ce7008c64ab728a20c1163714. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36647b34-39e3-45fd-9d06-87a7892e7389.json and https://artists.proofprofile.net/proofs/artist/36647b34-39e3-45fd-9d06-87a7892e7389.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Never Ending Celebration (Extended Version)
The Never Ending Celebration (The Unlimited Edition)
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 0xa4cad4935e3300c688d190cdd1edc30ffa623fff591d125459a892a62ad68b24. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FR2FD1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e7b28fc5a4c09f3f3d8b270a565a3e34113dd633f7ec517a5ce5db659ebaa6. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FR2FD1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bb99d5fea9adea5ac8d21e7c3ba57517c69cecb762cdf73d4d03d376f4af1f. 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/FR2FD1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cad4935e3300c688d190cdd1edc30ffa623fff591d125459a892a62ad68b24. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/FR2FD1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e7b28fc5a4c09f3f3d8b270a565a3e34113dd633f7ec517a5ce5db659ebaa6. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FR2FD1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c86efd3cc834d71ab3587d5f676d0279fde21ca79e3ad2cb37ab7c0d30e81c. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/FR2FD1800077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cec5a09c2e4589704a9ff6808f43162bdf755901dd29a1408c5eca906c44d8. 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/FR2FD1900086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cec5a09c2e4589704a9ff6808f43162bdf755901dd29a1408c5eca906c44d8. 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/FR2FD1900086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb538483a57c63ba3ce263d6aa55b351567b15e98cfd289c2b43b0331c7dfe461. 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/FR2FD2300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee959d52958584ef2fc8d6e566723e9ab232a7b526cc42cf702e1605a7214893. 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/FR2FD2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e83719352d63c09f72248280a6171f2ff941fa3f0a588e1923d6f0fc49259d9. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR2FD2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864e14a33246b51dd7a36ab3434208bd55d92662cbbc1a432762fb2f700d6a01. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/FR2FD2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10faea7532920a2a7aaed4ac197699d08b3deace64b15904646769272c642bd2. 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/FR2FD2500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c44f2094ac33a3105420fb698a84c62c5b0be0b9c87ac52b8a590b9357b17d. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FR2FD2500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e42429d58d8e69e53cf4740397a474b90dd5ae558edc097184ae650e72c25af. 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/FR2FD2500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a81806c9a58ebbb46176c0f8f0476b1dc3b66a1aba726308ecd7d28735ce10c. 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/FR2FD2500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a786346d34d0e1e9f92cf23e5063a5a8d5e76234e2e029adc71c8a23eb6b39. 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/FR2FD2500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10faea7532920a2a7aaed4ac197699d08b3deace64b15904646769272c642bd2. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/FR2FD2500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e42429d58d8e69e53cf4740397a474b90dd5ae558edc097184ae650e72c25af. 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/FR2FD2500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5207edf426ce0dd463b60b4cd1d6d8471c77ca7f3075fff6526776dd40e5f419. 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/FR2FD1700050.