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 0x80f3c181296e7093943b6f173163aa2de70c330cbbf1d54396485e93e7c8335a. 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/449ffc27-ac4e-448e-a570-221a0defa4cd.json and https://artists.proofprofile.net/proofs/artist/449ffc27-ac4e-448e-a570-221a0defa4cd.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 0xd5556b146c41542539c0e07aa0b13192dd329ac9909e96528ac6f416a84fe3ce. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-03T01:37:49Z), 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/SE5IB1701699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b009fc3818adeffd29d6d08d2839c3196ff2800e1c78cb967bca979e94b94c9. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SE5IB1800869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee86670b56ad9221018b348d00b2f39607862845224f4646f024a0d3b9ca4c14. 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/SE5IB1801041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5750ab6f2b94d6ee8378347038a41c6972294ce9877bd67081120895510b59fd. 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/SE5IB1900472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8d0e4650dfd4dd8e26886fbc956bfb2eaeed0e708264dcf9f461fd43cb3831. 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/SE5IB1800453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edea199341f9019d64564ec20084bbfbd49be5baad5207e48be8e605a017956. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/SE5IB1901301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6da5a2bfff32c1fc75e82e4b5b4a10e60188d269210029c806e779eba80e82a. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/SE5IB2000660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f8a8d3385a379fd96c4640ea7d8161b48b47c79f6b2300e796807eacfbc87b. 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/SE5IB2000957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee52b9af516bfb7297c094f2b1cc27e8a221c616d60e9562155d6f2aa65f099. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:56:45Z), 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/SE5IB2001916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08f217db039ecc0164fed7f4a731c7801b484a68d7d223ed910aa20adafb25a. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/SE5IB2104204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3bf844511f0fd854a4078ca45bea3c3892e30e24eb15b47458a897f3a1d045. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE5IB2105752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9057db8d4672531d4cc6a190d913028c875e7a22e5b0e1f26f663ea40c3795a6. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SE5IB2105734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a76a879a70128b431f5ab3010fb8f53d33464261f5f8ac683814109c8c8e7c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/SE5IB2214433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636e6d05be19aacf62de0dc82490d7714bf864ed1e8cdef74fa1367b37899646. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SE5IB2222481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a76a879a70128b431f5ab3010fb8f53d33464261f5f8ac683814109c8c8e7c. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/SE5IB2214433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6da5a2bfff32c1fc75e82e4b5b4a10e60188d269210029c806e779eba80e82a. 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/SE5IB2000660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee86670b56ad9221018b348d00b2f39607862845224f4646f024a0d3b9ca4c14. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/SE5IB1801041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4addef493334ef00406baaeb8cd0004adb75dc643eb33a88e2ad6d15400d7256. 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/SE5IB2157304.
...Baby One More Time - Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c338d69abd0fd83282550281935b6633dd66f641542fc0dee6e476375542291. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SE5IB2297963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f771a365cb31d422adc143c0d0aaa86f2051a50e75fd44c54ee4d72513676c. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:50:26Z), 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/SE69Z2440650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bbd4f8e18d71eabd0458d5d51460dedb27580aa30da4162fbc17aeb4dd4f28. 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/SE69Z2440926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a131aba571d5a6cb5f6cf29b40eb5e340346541a82ee2172b01a791794ee37a. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/SE69Z2442898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2026bc571aa557b01702669774ab53044b97252a531b8c1350894bdc7bee1fc. 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/SE69Z2443471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a131aba571d5a6cb5f6cf29b40eb5e340346541a82ee2172b01a791794ee37a. 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/SE69Z2442898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f771a365cb31d422adc143c0d0aaa86f2051a50e75fd44c54ee4d72513676c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE69Z2440650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c338d69abd0fd83282550281935b6633dd66f641542fc0dee6e476375542291. 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/SE5IB2297963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb072d6506727b8d995beb914c1ec67903cbd413bc9798979ab868ce8f981f3ea. 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/SE5IB2263105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78eb13bbe633f994ea1b58f995eccc6ce939f31f05fea62ea38fed2bb27e16c3. 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/SE5IB2001156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62806c0a514f4d6959061db5eb1ae3dfaa132541b4c84d797a8e5120e19889a8. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/SE5IB1701534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78eb13bbe633f994ea1b58f995eccc6ce939f31f05fea62ea38fed2bb27e16c3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5IB2001156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1cf299dbff7af83b7664c5c3c18ce568e554da24bc4e4e5090aa1b8cb6898a. 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/SE5IB1700949.