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 0x48e5ace44b627dba90038790a52fd9069732c73e0003bfa89cb636d59fcd18ea. 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/0f76c8c8-71a6-48d1-ac2f-c28a6fd386d0.json and https://artists.proofprofile.net/proofs/artist/0f76c8c8-71a6-48d1-ac2f-c28a6fd386d0.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 0x21a7b2b01b1d70e9b9ba02126740a14043bd9cc5cde8e606c7ec0890df20d3c2. 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/IL6192101043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85afbb5c0d558fb9679e17a1af1719481bb3a8fec061b7659b708d3f34df7d47. 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/IL6192100271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2cedbaf4f3c60bbb6d5306eaea595ef4a11a4d31e796bb558be3b51504979b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IL6192100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8263ffb96a9c4f3ab74183279a937ebdb01e6f3999b26b7118dbd82159d8608f. 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/IL6192100279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224362d818f7a0c777fe979b61247badc664868e9574b3e875586bdf8e9c1689. 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/IL6192100281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2661e47ee019751682428ff8981d28417d6668df4b3b024ddf1d282d13c1547b. 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/IL6192100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df689119c8d550a3d68da21777b38f93ae70872e71db77f1dea344d97f05f08. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IL6192100297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd126c91dc7ad6c57aa3991a89b1a6c8dbfefc95107eef53ad13a3004d2856fd7. 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/IL6192203684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4ae2257107b986bfd85212fb66b2d605c15412792266bb636b6be808d02218. 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/IL6192203685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170f4d04a385cb222b78562468b05aaff988682a9dea807cb66baf3b095c1ffb. 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/IL6192203686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccfef6090d260b525cfae91b4f89a9f4c46f1c07fdf3c875c8f0dcb2e4bd105. 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/IL6192203687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a691dcce6cb8035f91c2302a1493112532fe30d13211e9716486f19bfd6e9d4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IL6192203688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e6fcf51b0d1d4c1f24d21faab68c6cf65dabfe2bc9a8354d271fb59fb1bf6e. 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/IL6192203690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e154c8b0040b6bf45f7a61a748f99ed12e83e0641621e1fb93121fbbdd4f1ec. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/IL6192203691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcd1aaaf208c0cdd92e66fd1096ad7ccd868fb85293d733c024e2eca53941f2. 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/IL6192203692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00adc333173890285e75ecc223224230b2899188ce15b606b9eabfa6ef190e65. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/IL6192203694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bcd16df26a81aa413fe68eccbb4dceec3758d61187c8da7a36861ac7a9d28e. 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/IL6192203695.
סוכריות קופצות (שירי משוררים לילדים ולהורים)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd7cedad4c9b5aa86e4f65bc5c9a599677c6e391bc387070277af8e09066987. 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/IL6192202128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f874b0d4121fc4392ae6779a5452d79ab374145d634e9c18895d243d0639e34. 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/IL6192202129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44597398d025091b7fd992c285c2ece7c091346d32210f692077917702437fe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IL6192202130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb47719f8cd7479aea0373b5608da5981fcc93cc93653170f5fad747255dab1c. 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/IL6192202132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d500eb6e17d38caa98c8e69597713b7c6658cd8022daccd72aa2d9e336751e6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/IL6192202133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e73944c64bac4bfeed60080ea97bc4cd276e50a54784b9bbd9e74f37e9d887. 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/IL6192202135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19eb7d129930cf5ebfc0a7152d0d1b7a88b84d75afdf862e05f6ef664d00b882. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/IL6192202140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9c26f4294f2ec873e0aaf0be15c1be23dfcf359e4b48579a8203a4756da7b5. 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/IL6192202141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06f48a6dec89baf3085f3cd172e9d6536b8d3f5a28367a53b4562be078c2336. 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/IL6192202142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4976d660b714ec06367c83a62a85a3d656ab0976b5164c00cec05819bf683c9. 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/IL6192202144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea0af385bace5ddfd387064673bde9107598d589fa2a7b001b186f66751d220. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IL6192202145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e787e1f3d2cecb005900608449320230ec7555fd44f05ff29a1d354d6762631. 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/IL6192100872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c738512fa5b4aada70d03bf4294b4e6de012b34a6b2c450d17e16daa1008ddb. 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/IL6192100880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0533c8aff556e5ac0142be91b249e3cb25fd412dd09fd26e8931888ecd702f. 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/IL6192100884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a37a410e8d832475769106bf77313f797be36e3a0986510c93afda11d010ddf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IL6192202554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ee90cc8ff8a8a59b73aed1ff2db19af15b126b62424f610d4c65646276584f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IL6192305147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83448abdd9054d96c1ec5c56e7d2a9923de80853fa5483bec68995a0bc2a1c64. 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/IL6192202301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddb1a1761c132424057bb8fdc6e13ff48e9be6df7d1f092ceb6e06b034ea865. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZK6Q2208062.