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 0x1f1567358ca918fec8c1344861f537d85bbf58ff8692d92910dff2fa00692f8d. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb6fad20-38bb-45b4-826e-434825195cb8.json and https://artists.proofprofile.net/proofs/artist/fb6fad20-38bb-45b4-826e-434825195cb8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Embrace the Sun - Lion Music Japan Benefit Album
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 0xed5d0ccd1333a7b6e39b792027de024c457bc4a06305ef7c1e445f48dab9cbba. 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/USHM21117046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9783050b840bec8082c7cd051379effb81551da2a8909d1e5d4fea367dba6f4. 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/GBMJG2300612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccf48856f599e27ebc3434bf1010028494c69ed86d8b2a148d4c70104d1592e. 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/USHM80453727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aae351c588e17d8d5c5306b7d28cf0fc3a053f7f051f49fbed7c48a2da837b2. 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/USHM80453728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6959ae20fa9a2785a169fd3711b30e7e29e1d7f86d3cc56b2cdd4be70d3cedfa. 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/USHM80453729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b625a38ef3a52c639fd2fabe3f0b3538e327c59ce5bef9c268ef43c01122283. 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/USHM80453730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965bb9453f77ada8a8ee03aed0fc7c47aef10977bf7d04b261cf63eac13850b0. 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/USHM80453733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe419759e494cc1de2cc7c4a089de24d7cf5f07d83aac63cbd899b06bf020b8ac. 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/USHM80453734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7f7eeb357485831dfb9e02477250e3d4f20a6a98aa028e6ea1761cdad125a6. 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/USHM80453740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4af8d365f672a1a3b961dc142fd21a252f2e9b2d0e103b08977df14c78f0862. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:13:57Z), 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/USHM80453741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db42c9e32815a021cbe0c70a8f4522b71bf0a8c15732a8d658bb36427e5ccd3. 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/USHM80453742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1c67f02a9237697568486f7074bf78b0d89339f68b539b0f0c4d0e8c6b17e8. 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/USHM80453745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee19f5dd77e1e5ebc23e7cde2fe78d39c16f41443e1c5ae785896da09422cef. 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/USHM80453747.
Warmth In The Wilderness Vol II - A Tribute To Jason Becker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f93b259f9c4155a5987c0be1143ffd5e0653a1b786a729ee8fe128c4f389fe. 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/USDY42090063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc022737e0d8548b5331bddadb944781cfd35c1c67df7dab09fd4b9005531a3fc. 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/USHM81782630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3892398ea81a70b0785849fe3edc5e6b3d19a0a3b2550a95d1624ae5f498701. 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/USHM81782637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99055f33919e4410d0e6d8b71b510a9d05db9f15af0628442f2565f10dc2327. 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/USHM81782638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfae0b612bedfbf22142649191e14383cb0f7aa84ca6fd1949ba7ba85cfd3b3b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USHM81782640.
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 0x543e854c5ea9a71cbebf8a71e16414f8ec981d733e71c674f09945955ee749ec. 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/USCGJ0684074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d8dec1dd6bd04c7cb61f0f17f526b35a9be70ac614d35e1fa80cb222d1c509. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USCGJ0684064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d06cd64c94a3345cac11c9114b38ecfcf581cc8b053ddad7d8a4efb4ff40caa. 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/DEQ601080502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28d6c6dd5c9ee1fdf1392091c13c605030b4e431392de93e598776c99ee8cf3. 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/DEQ601011905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c9f3349a70bd993e5a30b3bb28db4fca3e79cf2d15fb051be5fcdc24052d3b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:23:03Z), 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/DEQ600999705.
Always Together - Ahmed Atef Instrumental Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721739e6ad42be45be6096136b743870c9c2d2801fed14ce8ec9d286fb7f2135. 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/DEQ600904104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f9609ba3f6096c12414408b34cde1e962d2a5b60341525bfaa4cfcd9f7e017. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEQ601009602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3a0a1b6f0badfe3344cc09ac3e63612f2b7405f5d979c4397e59bd8bfb0846. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:53:14Z), 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/DEQ600792605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e0609816c3c73e0caef6ff1bb88566545fbc2ed3826425ad237fbc57889a4c. 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/DEQ600908502.
Galapagos - Dj Shah & Ralph Fritsch Tribute Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edfcd11623e012f0f0a50cda89d0587a18cd9f05480596b740ce7ca0c56963c. 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/DEQ600793903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2f31b1db8fe2a095c3d7eb625dd476cb993ae0038b7a0b873623af7d53caa6. 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/DEQ600794502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d144655dbf7d2768a76fc44d1ed1879f0bad0b9c1c303a7afe09483a9fdbd0e. 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/DEQ601011202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd943f840eb72de3f23b99f7d1738191c7157a9579667ecb14b6ec377f2c5ada9. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEQ601014202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670437e2eae45bbe0dc4f5773b580d973c11793f5f6fce01a094cfd4d6bb7418. 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/DEAR41213773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26f9f0e8c410db5a593a78e7236f47d7b3cf7317600a3051ee4e0d39bc30dd6. 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/DEAR41213775.
Treasure-trove (Music From Bohemian Archives)