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 0x24b170cb74f4d2dbda11ffbcbc1668f6aa0aad9dd09249b1acb1717ce9009fd2. 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/a24c86db-9012-4693-8983-7172f77b44a8.json and https://artists.proofprofile.net/proofs/artist/a24c86db-9012-4693-8983-7172f77b44a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
KukkeSri Subrahmanya Varanidayya, Vol. 6
KukkeSri Subrahmanya Varanidayya, Vol. 5
KukkeSri Subrahmanya Varanidayya, Vol. 4
KukkeSri Subrahmanya Varanidayya, Vol. 3
KukkeSri Subrahmanya Varanidayya, Vol. 2
KukkeSri Subrahmanya Varanidayya, Vol. 1
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 0x2330593a122892159f079d8578655f0cf6856f218d0a625e75310a4170c553e0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/INS9S2202240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef566e97c64c335ac67bfc6fb795b1056d6d06ab0b1157ea407abeb4bbd927c. 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/INS9S2202242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8236982e7246efcf00e12b8a31d144fb25981fcf8ad211723c38ad4f88d24e7f. 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/INS9S2202243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf00f35a020fac43691121ba2689ee37a6aff7a7d7a9f8c94fe3e89b8371687. 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/INS9S2202248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3ce779238a9057a4daa1dc53d988ab6064afdd6534c704493b34036776c9e4. 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/INS920800456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5003fdc48ce9567806b59b6910b88d4e906b7155db5365374c873c33f0775e02. 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/INS920800458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acbd5362713644dde0bd466375b99e7dbcfbde4ef94d6ae32c49832624596b8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/INS9S2305848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed805b26245d5750746868a7500a425f4b2aefdc64d446ef7f75cd4b9fb55281. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/INS9S2305849.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9a006ab2e5a896f4b86bc9d1cff8122fd92e3f6f835da839827f3232b9f742. 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/INS9S2305889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8fd59a5a2fa72f937f6e03dc61ad4bd95905987a0fb63eca6f778258d5b481. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/INS9S2305890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb3f1c7279ec4ab82e97f7d088ec2e0eeab256f6f405e6f0e67b7c893904c70. 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/INS9S2305873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da5305423d328c717f4a17f2af2a1af4512cfcf2546432beb8b9af6d9c9fad0. 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/INS9S2305874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91016571b1351d410cf386c4349b9b07410286280808bd673ba3bcdd96f73f67. 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/INS9S2305868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd94eaf254e98770def763f70ccd2ce57ae017a22d56388b611eb9ec1edac1d9. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/INS9S2305869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ab32a339865069bdeb6624a446bc37c8d10ddfad9b14cbef696e3b5d793b17. 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/IND292211875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2932f0e0da04472feca2a1ce4c04680743676698bf56f025835a41657e394c. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/IND292211876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3355186ea816a89fcbc79fefab1bd5be0f7e6bea45e08ccf500d17a54848f9. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/IND292211877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf401266c7449a389e62c41bde2c2b22b87210de08f5b2370b7c50c4d833eba11. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/IND292211878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b9d55edcb8730ffa1a7cc414d59beb8cb9929b69d922e427c7cf97b076bb3c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/INN122402092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a97391bcbe0d244b3488ceec451670b6239157c6a366db3a24b5f3494c4e81e. 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/INN122402093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5bdab5cf167019834aae067580232820af934151f99d96c55eee9b99924e87. 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/INS9S2202224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3bab4f51ce4939495baff57116bcf8e5c810561912d0c7562d5c6ddbaa7d47. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/INS9S2202223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4e4791c74518e1e80b8b89b2bb079a9c4c699a00c4e2a0ba2455dc0dbae24f. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/INS9S2202231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2c23d109a670e341a17b3759937eaea10a34621cb2913f186803f0a30bb977. 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/INS9S2202207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8569b5954d1a7f2d936c16abd8cfc53cb34d270bb1f9438a37307bb9fee6840d. 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/INS9S2202208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c748513cab2f7db49b95a614a05ae343d6c8239f722e6cad8e69a63224051a2. 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/INS9S2202209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c78f34fb036138512d2acb0e486848faa06fd888cd5a11a0fbe7297121a5a4. 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/INS9S2202210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7747c3e381a43c97dd583385e3d6d5dad2be442f94f7b95ec4468e73f7de952f. 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/INS9S2202211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64796a50f5c1b5acad8168117db7e01df53210fb9f1b4714f8d3f6de0501741e. 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/INS9S2202212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9318919d0dd03c7c619cc685025a02da2c46aa036ed58280ad876f2d3e9c2dc. 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/INS9S2202214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcf12c93cff7233f054f94e2245df983cd4e3e5a9c234e72850a887605d19e5. 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/INS9S2202215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8de5de1c96dd5b554e69c564f943015b952bbff0a5a117653fc3fd0570ce41e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:57:17Z), 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/INS9S2202213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa446905f9dfed69138a82241b5bcb0d895d89783ce5b535804b90e60042e38a4. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:49:56Z), 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/INS9S2202216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1562958677ee947d66aeca1024c16fc83560a1109bb2609fcaafe8f3a529ba38. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/INS9S2202206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e22d957bf3967b676e6d7421aa8bb633151e76fb6c48127e14033a48816e78. 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/INA962100847.