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 0xb28d2a05e6575bbcda777112b6e834b39f705b6ad7cabee71274e6daedc5a0dd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/304f91b2-8a8f-4a60-a57f-d068646fd672.json and https://artists.proofprofile.net/proofs/artist/304f91b2-8a8f-4a60-a57f-d068646fd672.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 0xe971d2755eca4b1226214cc8239ba174af90c7b49275ef3f63317e74ef2c8d8f. 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/QZES71800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c08394442cd5c6ed0e7adf780abd8bcd678518924471a9fd54c3c957e16ef81. 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/QZ4JJ1915089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606ee263670f48ec4b90aaeb509c515306c58c17ed1f06e7bd88655d5af64d9d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZ4JJ1915090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89da2e6be248d7b4726ceab33964c3317ab58483242f50ecafeb038f44c911b. 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/QZ4JJ1915093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67058a7a56265c560acefe6eb3a8c211ca76df0d43ce6b1dcb7f065d9f1f7d2. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZNWW2047430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e2acdb7f9dc7eb6f429e93363934b1e8399be292db162ba8e65ae8860a4cf2. 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/QZNWW2047434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5115fb8aedd5c432d3d5f941d7a16527f0a5c055e004ee685d095a16151013ee. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNWW2047435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976cfa10af80909ef7b0121d1cbbe857fee16f995317a7978c681f37fb8e44a6. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZNWW2047438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4623c66b28c732e91504a7c29b4f1bfd7b6aea63b09ead715a6e69e195195573. 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/QZK6M2102969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e90fa4e991eebda32914e7ff7f5530dfb0acce4fb414ea79a000af5d96816f. 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/QZK6M2102970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf7df7b1f7292191f4d626343cbbc313b0e6b6acadd9fe3a596e6057e73984d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZK6M2102972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e8301666b1504a9d4f7cfc0d6ac84a317bd73251459b3579dcbc921c7bf415. 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/QZK6M2102973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c733993a2c4870aea53140ed5f4e0b3a57b09e3d57bab91b9d863e9064057a. 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/QZK6M2102974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fe956ef115f92379708ecefef60c078e4e1c67767f86093bed2f1cfb8230fd. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZK6M2102976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93395b87db399a570951d9c62ad3ac3e12f09dd1518b9e6709bdb6ac6d2682dc. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZK6M2102978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ed9a8682a44ede1fb95f6789fc0cb3a3e86e6bdfc0f3edf512d28a590fb95c. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:51:53Z), 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/QZK6M2102979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e0c410d17eee46d284e985d6c3f4126dcc33194bea9c26a1cc3e8b945ca4aa. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6M2102980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa86daaf4a12420aa20bea305e2a66b60bcceab5304cf36d67624fb2d16d8a2. 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/QZRP42122888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6380b1834611ff8c64bac3943de3693a485b431c3f3c4cc9496934dc30059251. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZRP42122889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc54e09123a457166fc5ee0448f88f4f2cc6a0cd4ad8f7634c86980bb344e03. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZNWT2278983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616a8934522c2b8bfd40766aea660e98c05551f7d70b1bfae2a4ac65f4107965. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZNWT2278984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaae79df47a116e6821d2907aa9b815fe6861ac3811c3a8d1faf554f15af5b8f. 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/QZNWT2278985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637f97701df2bad56d91516f8247f1b558f33e1ab117973bf62ad36ef38fea8c. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZNWT2278996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56fea56c023b98a064e34bbf18bca6103989b3c3cf79c10f4e76e7ec60157bd. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZDA52402469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b165000c14abc4f12564c75373097264158b8494a145d7844cb96c9d8c0040a. 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/QZES62502833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d67b5d982a9e76f7864505f58d01846bb13ac33cbd5d0e216a98e6ac3e116f. 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/QZES62502834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfd802dc17151f03dcc9bbcb97d17d214ff76e3b057a4f49c93f2b868254cb9. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZES62500925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20336c9026f3fb8d7be1b29b719e76c79d1ab28956858af3114b0bb3bd8bb3f. 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/QZES62500928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46259f98fe4d7e744a2cf02db578aa8256a608ade1dc7536a836ee0149a97c2a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZES62500929.
Beneath a Canopy Woven of Flowering Vines
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24998b77189ede1e8dc4b88b8969448301096478c045de7cf1944e4f2ec144fc. 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/QZES62500931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031427868e86cdddafd8e9b8edfa102688a27ee38e74f47dc3cda88259d74917. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZES62500932.