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 0x0b7be101644061ee15e561e1b7211a1bcf4420e5f083206cfb03889e10dff22f. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b54b9ded-17f1-46b9-9095-a7f8cb286929.json and https://artists.proofprofile.net/proofs/artist/b54b9ded-17f1-46b9-9095-a7f8cb286929.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 0x8716996f450808e6abd82e23ad2e10226e1bb3433f2a72819b00f5e1c0b4f4b3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USWD10935793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafaad8572fe9be3c505e06d8d0067129a0b392b152c88cb853470b4303a7e91b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USWD10834517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2c63b09078985e636f967e1dd09d7493922ae698c3995677a2c6735e80ed02. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USWD10935794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc9b09f69797cb5ee2410091cce31efe78ee8bdf2b512abd609c80961f8786a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USWD10629843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6de01125a101a4e1d09813f87445b7a23960fc0214cea894bab61e4e77c62d. 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/USWD10935795.
Hot Dog! - From "Mickey Mouse Clubhouse"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf305d158b9500ae5e6871f989d005624f96f1d94a4b1d7c91f72a39c2b106c06. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USWD10629853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbe62ed70e8c3cf68163ebcfde45bee9b55b87ffc9aa76f51cade5328741e44. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USWD10630441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e403ae85676dee92e9749741a2006b437fa20a1297353e21ea795e18836c33. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USWD10935797.
The Happy Little Monkey's Song - Original Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e1cbe46b731fd0b94fabbc4031943ff56178bfd18cb97809e9c1fa8d4cf331. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USWD10935801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09780caa93f43039c071a46d6cfb40297f767acf1664cfebb20e2c62766f0a35. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USWD10935802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423424c5963a38570743532344c739322a4e9f2460060eabbaaec19ec2d81d05. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USWD10935803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f35d1e617099961158678b8e9aff73f5818412e8c10f593739376166179c485. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USWD10935804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c60dd81ef01a0a4ca949ed727137fafc8646776cf16af9735ca3e902b6ec79. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USWD10935805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bc4f28c3b439214aa0c96a951f89286519ce9093471605e5b04bb6008829b4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USWD10935806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130451df35500e33540a782d66349e15658c234363ffdb5a4a48d31b15050ecd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USWD10935809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61774694037af625f65f71bd07fbaf69847b7dc716cf45a43c799c4a35c17cce. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USWD10935810.
Special Agent Oso Theme - Original Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251cd4aee56762e16b191fffc7a40fc29d574efc4907bd77436dc416fa802186. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWD10935811.
My Friends Tigger & Pooh Theme - Original Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8b5091fe376183f4c4af8a29c2430e206d7a78679457119d2cc00f8fae1df7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10935814.
Nothin' Can Bounce Like a Tigger - Original Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5feaec42195dea0c89c1fa0f4c35160b5378b4bdb6a2322ab3c2914cf921e05. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10935812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473148398ba1e487432b47369b52523dc5a5d0a8ff00e3acf70604eb6c7b791b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USWD10935813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafaad8572fe9be3c505e06d8d0067129a0b392b152c88cb853470b4303a7e91b. 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/USWD10834517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5feaec42195dea0c89c1fa0f4c35160b5378b4bdb6a2322ab3c2914cf921e05. 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/USWD10935812.
The Little Einsteins™ Theme Song UK Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd67b360a72c1c88934d9179a4fe883119435a3638ed95c10b83b9805f72cde. 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/USWD10733505.
Exponential Presents: Collapsing Culture