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 0x42586bcb668f31e22b6eb2715e0e1a946bdf990a07eb15753dff308c09ce06be. 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/4a4d3e3e-c167-4493-b374-841969cf64aa.json and https://artists.proofprofile.net/proofs/artist/4a4d3e3e-c167-4493-b374-841969cf64aa.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 0x5aa626d02a335398bcf995e0111f7de28cdbf9efc30cb09cfa8a36b3072bc404. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QM2PV1603755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02c6820fec1c726cf4664a5967a7af9697d78471513d42de062599a8465346d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM2PV1624518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4739f663690bd9eb0899afdfdc08c05683a9aa0c3b0d757c36c48e9d8c8e352. Chain 2 (Bitcoin): anchored in block 957527 (2026-07-11T06:08:55Z), 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/QM2PV1631939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c2518a803dc0bc502c4d98d3eae946c336cb04dc93eda96ea4d842b5a326bf. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:26:35Z), 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/QM2PV1680489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd00e736ec4361c6684834f8d214abbe4e22fe9c72ef1ce7483ab7d73fc0d414. 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/UST8K1619410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43571e525df351688980efd097eb366b941daea3bfcaada626fca6cc48ae3bda. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:32:28Z), 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/UST8K1660920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bda219520b2932d8410a7e4574298a3dfb1436eac525fe4aadb1d62b93204e. 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/QZ4JJ1682767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377bd47918e897d8bd5fe00ab2a8d1619487d0fe2b53db69d983547290f81eef. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/UST8K1759605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6089487b7fea9e57a0442d40fb7c5cb7cb28e042ba254624adab727ebeef883. 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/QZCE61862293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd806316dc23986a2c01b283c142f14a95876d4310f01dbb2b9bbde08221e6f30. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA61818825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57a915ceb521e143a3c5325d59eadab2d2f7d5bb6dcd25b1363f2279d8a8966. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:53:27Z), 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/QM2PV1896399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748173477f654f47310990233c1066ef5c0c8b70bda8047459687e5424720eda. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZES51809305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdab39d81200b989a9428af2aec001ee1a759d465c95de97302ca5e9a6758454. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZES91865033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ea47ff5303ea246517693732d3b60a32e7092c1b54ddfa3d64b601c45d8444. 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/QZFZ22012859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe631ba8165ee3f5251c514cca58e05c241781f9863fcec8165f3d31375871b0e. 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/QZFYX2024500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53f2d572aa364054a95bfd319ec2e7b4627f19bf86a4c8175f5ad3c6ec3882f. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZES52093786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f790d94383a7d5d76a2a1e3a56270e6b3b6a1af375ec29d4021fe83a8af7f76. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:09:51Z), 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/QZHN82018086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bc3b43c52ca429b01eae72e8c7aadb04205f3c40031e8e23c64670df170439. 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/QZMEQ2003681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ab07cf194631ce1eb84f6716a890b574ade917f62bd8cb17ab334bec60a618. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:50:21Z), 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/QZNWR2076344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb62fb635dce17bf09ada7f56014cdd509ab38e4b74070f21580bb5f67c89ec. 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/QZFYZ2191713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6032125a27baa1909755ecb15158ad62b642f4ef091388fc246ec9507efe40. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES62123301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbf7d82fd2bda91cfd4c30f74a6ee189d535e7fb23be6fb9b8d6b17135da6f6. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZHN62146555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb398b58f389c548d6f6009f07786d5a8e24d8024203cf03547332c5d8f9d128. 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/QZMEM2159159.
At the Stake (Vaudeville Remix Samhain Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5869ba67c596ede0c42f797d1ba3e9db4812b4c8868933427cc5482de2037d8b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWX2104954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb58de72ea9c4b6ec30ba58e9f54047d62b05800a37df4eb697bf02eddc4639. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZES62215212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ed9e1cfed49a5c4e982b01914a329b06819c4b265604bea5da311bee321173. 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/QZMEP2222704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4832fc115b98903b45e209a1cf3a96c9c8ab70efc2af25f11090a9e0202297. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZFYZ2322967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6ae0175f2a195741a687649d8f6df726e6056ef29907e5688e9df2be9c3dc4. 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/QZHN82345291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9279ff0e31d9e19d3b69af476da0481896aba702fd6d00c1d14972faacb3b22. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZPLS2373610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071f2906fd061a335c9a32df8462be9c976dbf69c8de7294a66971bee9f19f10. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:22:52Z), 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/QZTBF2380950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bbd3503587b946286a7922dbccc4494852834bb30d296fa06d0c7ac8d3e00e. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZNWZ2438850.
Pocketful of Sunshine (Cinematic Version)